In addition, the axle seal can wear out over time, which can cause it to leak. Aug 18, 2012 · No need to worry IMHO. The pinion seal is in use at all times. ly/maxcar_subIn this Excessive pressure or fluid levels that are too high may also cause the seal to suffer wear or blow out the seal and allow leaks to form. Mar 31, 2009 · I had replaced the pinion seal, but I re-used the pinion yoke even though there were a few small grooves in it. Mar 31, 2005 · > experience? I have a leak from the pinon seal in my '95 pickup, a drop > a day or so. Burning Smell. Oct 12, 2023 · Signs of a Leaking Rack and Pinion. Oct 23, 2018 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Jul 21, 2011 · So in spring with help I and my cousin rebuilt my 7. The rear pinion seal was leaking back in February and I replaced it. The "nanny's" took all the fun out of driving spiritedly. Neither of my other trucks had fluid leaks. I can't tell if it is the seal itself or the splines that are leaking. Does anyone know what causes this seal to leak and if there are improvements that can be made? Pushing high HP through a stock drive shaft and rear, but not sure if it's that or something else. Once it starts leaking, you will notice the leak around the differential. The pinion seal is situated at the rear of the differential and serves to establish a secure barrier at the point of entry of the driveshaft into the differential. I don't know what the cause of the leak > is. I have had two previous f250's and still own one. The pinion shaft has substantial play through the inner bearing. Had a GM dealer replace the pinion seal this past Saturday. to/3Tt8PDs - New Rack and Pinion https://amzn. Unless you have the tools to pull the yoke, measure pinion pre-load, crush a new crush sleeve, and set a seal, I would leave it to a capable shop. border line impossible this thread sure went in the toilet fast. Other possible reasons for the problem of steering fluid leaks are corroded components, overfilled steering, and the use of low-quality parts. They thought it might be the rear axle seal too, but it was actually leaking from the case itself. I pulled the driveshaft and marked the pinion nut so I could reset it properly. The fix: - New front ring and pinion - Master install kit - Anther new pinion seal (hopefully the last) - A nice quiet, leak free front axle and pinion. I cleaned off the housing with brake cleaner and will check in a few days to see if the appearance has changed. Care is still very May 30, 2010 · Advice about changing the rear pinion seal on the Duramax 3500, and some tools needed. used a magnetic tool too fish out old sleeve after pulling seal and bearing 4. I’ve owned it for about 3 years maintained the piss out of it. Turns out the leaky seal was a symptom, and replacing it was just a band aid. Could this have created the seal leak? . The > breather cap is rotating free. there is a crush sleve on the pinion and if torqued too tight or too May 20, 2022 · Time and age will cause your output shaft seals to wear out and leak. I'm working on a 1979 Pontiac Trans Am 10th Anniversity Edition car. I only have 36,000kms on it but have taken it back to the dealer 4 times for a leaking rear differential. The dealer is saying that l should Oct 6, 2004 · The driver's side rear axle started to leak at about 13K miles. Awesome. Remove the seal around the yoke and replace it without damaging the new one. tighted until i felt the crushed sleeve crush and you will feel it. Aug 9, 2014 · 2009 - 2014 Ford F150 - pinion seal leaking - 2013 f150 4x4 rear pinion seal leaking with 13000 miles on it. Pulled old seal with a puller, cleaned it up and hit brought spots with Emory cloth, then installed the new seal and nut and torqued to 180 ft lbs. Nov 21, 2014 · The product works by revitalizing and reconditioning rubber seals/gaskets. Jul 21, 2022 · I am experiencing my first oil leak and the Toyota dealership diagnosed it as a rear main seal leak and quoted me $4400 to fix. Jul 21, 2021 · Fluid Leaks. 25 Axles, Pinion Seal Replacement Procedures Hey All; So I've neglected a rear pinion seal replacement for a while, it's leaking down the pumpkin and making the bottom wet but it isn't dripping on the driveway yet. https://amzn. This signals immediate attention to prevent further damage and maintain peak drivetrain performance. Everytime it is leaking from the pinion seal. Aug 26, 2011 · 1999 to 2016 Super Duty - Rear Pinion Seal Oil leak - Fellas, I have a F250, 2005, FX4, 6. I'm mechanically inclined just have never done much axle work so wanna make sure i'm 100% clear on what i need to buy and fix. broke lose nut 3. 75. Since you pulled the pinion nut off to remove flange and seal. Jan 11, 2011 · I have a leak from the rear of my 2008 Mustang GT. I decided that I need replace the pinion seal. Oct 29, 2014 · So I had the same issue, slow leak out of the pinion seal on the rear end. 5 and 9. The outer bearing was on loosely behind this seal. then a photo that doesnt seem to show any leak that i can tell but its a poor angle to say the least. May 12, 2012 · My rear axle pinion seal has started to leak (2003 F-250 10. When putting the new seal in, use a thing coat of Black RTV around the the sealing surface of the pinion seal. So I replaced the pinion seal (See here). Sep 23, 2016 · Replacing a leaking pinion is very important in preventing any major repairs. a quick pinion seal change should include marking the nut and flange before removing the nut. I can see tell tale signs where drops of oil is slung on different parts underneath the jeep in a linear arc pattern to the sides and above the area of the pinion seal. Vent still attached and not clogged. The pinion seal leaking is a good indicator that something needs attention. Most places will not replace it correctly. May 21, 2020 · Hi everyone, I have a slight leak coming from the front pinion seal area behind the front dana 30 by the driveshaft. Leaks around the differential. Drove jeep home, took it to get washed, and noticed it was still leaking from the seal. It is an 06, with a 6. This is called the pinion seal. It acts as a barrier between the inner and outer parts of the differential to keep gears and fluids from leaking out or coming in contact with each other. Apart from a fractured seal, the major causes of fluid leakage are: Defective Gasket How to Replace a Rear Differential Pinion Seal on a GM 10 Bolt Rear End Housing. The first and obvious indication of rack and pinion leak is a burning oil smell and a red or pink puddle under the rear side of the engine. However, I cannot stop the axle seal leaks!! At first I replaced them with the entire crown automotive axle shafts both left rear and right rear. Apr 21, 2021 · Just replaced rear differential pinion seal due to a leak. If there is even a small groove it can leak and you would need to replace the yoke. Feb 12, 2023 · 2015 - 2020 Ford F150 - Leaking Rear Pinion Seal - I have a 2018 F150 5. Fluid leaks from the differential are usually caused by worn-out seals. I purchased both the front and rear seal kits from C&M gear works. Improper installation during assembly can also lead to leaks, as the seal may not be seated correctly, allowing fluid to escape. Sep 6, 2014 · I'm going to check the oil level in the differential tomorrow. Jan 19, 2023 · When the drive shaft turns the shaft, the rear diff pinion seal combines with an oil slinger – a small disc in front of the seal to prevent the oil from leaking from the differential housing. IF the pinion shaft is sound then another common cause of pinion seal leaks is a plugged axel vent line. 00: We would like to show you a description here but the site won’t allow us. Sep 16, 2011 · There is a leak coming out from under the pinion retainer, that piece with the 5 bolts. But there are also instances where a faulty component within the differential, such as a worn-out pinion bearing, can cause a seal to leak. sometimes if the leak is caused by pluged vent and has not been leaking long once vent is clean sometimes the leak will stop. This can be a small wet spot, or actual drops of oil. Let’s briefly look at the factors that can deform or deteriorate the rear crankshaft seal. Rear pinion seal was replaced a month ago by me. May 15, 2017 · A leaking pinion seal (drive shaft input to differential) is easily identified by a ring of differential fluid that has been slung out in a clear circumference line above and around the flange that the rear of the driveshaft attaches to. Cover gasket was changed as well. Oct 5, 2015 · After removing driveshaft make witness marks on pinion shaft and nut (I like to "dot" em with a center punch), then count the exposed threads at witness marks. Not been fun trying to figure out what size that nut is. 00 cheaper than a whole new yoke, which cost me about $50. Should I now expect this new truck to be plagued by pinion leaks in the future? Nov 28, 2023 · Discover the , signs, , prevention tips, , and costs of a rack and pinion leak. Whereas the Rear Main Sealer is specifically formulated for only a leaking rear main seal. but when it came off i saw no oil around there. The pinion bearing was failing. May 20, 2012 · But I think the pinion guard of the diff diaper is what's the problem, by having hwy speed air flow push in on the seal at a strange angle causing it to leak. patreon. When your vehicle suffers from this issue, you are looking at a major repair. This video will show you how to replace the differential pinion seal. Looks like it was leaking from the pinion seal but isn't now. This prevents water ingestion if the axle gets submerged and helps eliminate nuisance vent fluid leaks. Jul 5, 2018 · I parked my Tahoe in the garage last night after coming back from a day trip to Big Bear, only to find a golf ball sized puddle on the garage floor near the rear end this morning. Jul 19, 2014 · This isn't a problem most of the time, but on some rear ends the seal will contact the outer pinion bearing and cause problems. to/2XVIqVRPatreon https://www. Remove the leaking pinion seal with a seal puller tool. Diagnosing a leak from the rear differential on a 2007 Ford F150 4x4. Engine oil condition: One of the factors that can cause the rear crankshaft seal to leak is using the wrong type of engine oil or a low oil level. I was also wondering if overfilling the rear diff. I then noticed in September that the differential was leaking again. Use a little RTV sealant around the outside of the seal before you drive it in to seal scratches in the housing. Failure to lube the seal lip and contact surfaces will cause seal damage during installation Each pinion shaft will have a pinion seal, which is used to ensure that fluid does not leak out of the differential past the pinion shaft. I replaced with another new seal, looked fine just like the first time I replaced it. Either way, you should contact the professionals at YourMechanic to have your pinion shaft oil seal Jan 22, 2024 · What causes the rear main seal leak? Many factors can cause the rear main seal to leak. While Ford had it, they did a couple of open Apr 19, 2024 · If you spot fluid leaks near the rear driveshaft, it’s likely a bad pinion seal, critical for your vehicle’s differential. A pinion seal leak can cause your vehicle to lose oil over time, which puts you at risk of running low and potentially damaging the rear differential. Depending on the setup, you may have a rear pinion shaft, or a front and rear pinion shaft. I bought it about 8 years ago with 70k on it and the rear diff was starting to whine a little. on the rear that is currently in the car I have a leak out of the pinion area. This is my first time doing this job, so I've been researching online. Nov 24, 2022 · It appears that rack and pinion leaks are a typical issue in older vehicles. It steadily got worse. Worn yoke splines can also cause this. Additionally, damage to the differential gasket, pinion seals, and axle side seals can also cause differential fluid leakage. I leave the seal sticking out about 1/16 inch to keep it from contacting the bearing. The pinion seal prevents oil from leaking out of the differential. Dec 4, 2015 · I replaced my rear pinion seal on Dana 44 I just swapped into my 2000 TJ. I attached pics. On a manual car it could be a leaking clutch slave cylinder. Metal-Contaminated Fluid Jul 22, 2011 · You'll want to have the leaking seals replaced at a minimum. • Vibrations or Alignment Issues Over time, it’s possible for other parts of the differential or axle assembly to suffer wear that may damage the seal. A rack and pinion leak is not a problem to be taken lightly. It's probably an inexpensive part, but very labor intensive and probably something I shouldn't try to DIY. Jan 9, 2021 · Hi i'm new to these forums so forgive me if i sound a bit newish. But what are the symptoms of a rear main seal leak? In this guide, I look at the purpose of the rear main seal and tell you what causes a leak. That said, the rear output shaft seal is more likely to fail than the front seal because it is exposed to the drive shaft that is always spinning. The main thing to do is to count the number of turns it takes to remove the nut that fas Oct 28, 2007 · 1997 FZJ80 145k My pinion seals have shown no sign of leakage at all. g. A call to Randy's Ring & Pinion got me a new yoke, pinion seal, and pinion nut. For instance, the gaskets surrounding your differential also have a rubber component, so it’s common for them to degrade over time. The only 2 factors that I could see remotely having an impact would be 1. 8-inch Pinion Seal So I have a new seal coming, as well as a new Ford Racing pinion flange (in case that was the culprit) Jul 24, 2023 · 4. Aug 13, 2023 · Other Causes of a Rear Differential Leak. I was under my engine and noticed oil leaking from the pinion seal on the front axle (passenger side). Here are my questions. If you notice a dark, thick fluid leaking from the rear of your car, it could be a sign of a differential Jun 14, 2011 · - The pinion bearing was shot, completely seized it would not even turn on the pinion gear and was chewing up the seals. Would try repair myself but unsure of correct process. By reading this thread, I already feel that I did something wrong. 5 diff. It couldn't have been leaking for more than a day or two so I don't think its lost much oil. Jan 7, 2023 · There are many reasons your car might be leaking oil, but one of the most concerning is due to a defective rear main seal. Noticed a spot in the garage and so I crawled under it to find the diff covered in oil. Anyone have any insight on this early failure or anything to look at other than throwing a new seal at it? Apr 26, 2016 · Replaced my Fox body 8. There was nothing between the seal and the outer bearing face. Dec 12, 2019 · chances of the yoke being grooved at 30k are extremely unlikely. Before doing that, I had to disconnect Mar 22, 2012 · When you installed the last pinion seal did you closely inspect the yoke for a seal cut? Get another seal and pull it apart again, look closely at the machined surface of the yoke where the seal makes contact. The dealer warrantied the problem and included new rear brakes because oil was on them. #1 – Differential Housing Seal Leak. A rear differential pinion seal necessitates the removal of the yoke where the driveshaft and diff meet. Most leaks are solved by replacing the entire rack and pinion system to ensure the system works correctly. then a statement about reporting a dealer for something but who knows what Apr 15, 2009 · I have just removed the pinion yoke and seal on my GM 10. Even if only one seal leaking it is critical to replace the rear differential vent (even if it appears to be OK) with the updated part to prevent the leaks returning soon after a repair (we rarely see only one seal leaking on these when the vent plugs up though). Seems like a rear pinion seal leak. It is now leaking Apr 3, 2020 · Originally, I went in just to have him install a CV Driveshaft and pinion seal, and found out I had to replace the rear pinion yoke. First one was a duralast seal from AutoZone and it leaked worse than the original seal. Occasionally, the leaks can be attributed to an over-fill condition when adding oil to the axle's center section. 5 rear and beefed it up. Looks like the rear pinion seal is leaking fluid. Any idea what the cause might be? Mechanic's Assistant: How long has the vehicle been leaking? What is the Jun 28, 2019 · I have Dana 44’s in my Jeep now but I have the Dana 30’s in my grand Cherokee and I’ve always ran Mobil 1 80w/90 in the front and 75w/140 in the rear and it has worked perfect. Because the pinion shaft connects the interior of the differential to the driveshaft, a seal must be used around the end to prevent differential fluid from leaking out. May 29, 2020 · The dealer wanted to just replace the entire diff, but the bulletin called for a rebuild with replacement of gaskets between the superimposing gear cases and the main differential housing, etc. fluid could be the problem? I filled it until the fluid began to run out. I have had to replace the yoke and seal on repeat leakers. Apr 1, 2005 · Unfortunately it was still leaking, but evidently not from the axle seals. Here's the write-up I followed: How To Replace An 8. i'll check that Sep 17, 2014 · My recent expensive experience: If the pinion yoke is moving laterally or axially, the pinion bearings are going and need rebuilt- regardless of what the U-joints and drive shaft are doing. tho on new seal - no rtv or silicon (it sealed) 6. Jan 15, 2017 · The Sprinters, Crafters and Transits that have this leak usually have some nose bearing and pinion wear to boot - Pinion bearing wear will cause opening of the seal as the spinning diameter of the worn bearing damages the seal lips, as does out of spec pinion pre-load as the output shaft starts to move backward and forward slightly (load and Jan 26, 2010 · sounds like the rear ends toast if its whining and leaking out the pinion, to replace the pinion seal you need to pull both axles the carrier and all shims and then unbolt the pinion and take it out the rear then replace seal and get a new squash sleeve to put the correct preload on the pinion and then replace carrier. It was most likely the culprit. Apr 8, 2023 · Considering a rear shock was also replaced it makes me wonder if the truck was driven pretty hard. So I'm calling the dealer today to get it in. Learn the causes and symptoms of rack and pinion leaking so that you can spot the trouble right away and take necessary rack and pinion repair. there is not a specific torque amount because it is rotational torque(how hard to turn pinion). Jun 23, 2014 · Scoring on seal lip contact surfaces will cause a leak. so maybe it is creeping through there. This time, for SURE from the drivers side axle seal, as I can see oil on the inside of my wheels. It's a harsh environment where the differential lives and bearings are not the only reason a pinion seal could be leaking. Mar 23, 2020 · Leaking 2019 Ford F250 - What happened to my pinion seal??Just a quick video about a leak my truck developed. Jan 13, 2017 · BlueDevil Oil Stop Leak is more concentrated and is the universal application that will work for various leaks such as oil pan leaks, rear main leaks, valve cover gasket leaks, etc. In most 4 wheel drive cars, the rear wheels are typically engaged all the time and the front wheels spin only when needed. I cleaned the surfaces and lubed the seals like instructions said. Leaking seals many times are the first sign of a failing bearing, too much movement for the seal to follow. Rear differential leaking can come from the pinion seal, where it is connected to the driveshaft. I own an auto repair shop, and have done quite a few pinion seals, so I figured no big deal. Most engine oils May 18, 2021 · TLDR: After fluid exchange I noticed front diff pinion seal leaking. May 23, 2024 · This will commonly result in an oil leak by providing a path for the oil to seep between the axle and the seal. Old one had really deep grooves on it. Causes of Rack and Pinion Leak. Mar 30, 2014 · If its not leaking badleaving oil stains on the ground or its not real wet around the rear driveshaft, I'd leave it alone and just keep tabs on the oil level. An obstructed vent can also cause leaks. Decreased differential fluid levels can also indicate a pinion seal issue, so monitor and address promptly to avoid Feb 23, 2022 · Inspecting the oil for any signs of mental contamination possibly caused by a pinion bearing that's starting to fail. Dec 26, 2002 · One of the main causes of oil leaks especially at the rear of the engine is the oil pressure sensor, it starts leaking and runs down the back of the engine. I crawled underneath and found that it appears to be leaking from the rear pinion seal. I installed a Mopar seal I picked up from the dealer yesterday and this one is leaking worse than the previous two. (Pinion bearing) I changed both to Mobil 1 and the noise went away. Over time, the seal that prevents the steering fluid from leaking can deteriorate due to age, heat, and friction. after the seal is installed and the inner and rear lips are filled with vaseline to avoid having the tension spring pop out or the seal rip upon assembly tighten the nut so it aligns with the original mark on the flange where it was before dis assembly Aug 12, 2014 · I thought one was a rear main seal but it turned out to be the front seal on the Saginaw 3-speed tranny. Possibly overfilled I let some fluid out until right at bottom of fill plug and seal still leaks. Well after we filled up the rear i noticed the pinion seal leaking but figured it just needed to wear in or Re: rear pinion seal STILL leaking, brand new 07-22-05 08:08 AM - Post# 745339 In response to 98Burb4x4 yeah i forgot to use some stuff on the splines before the washer and nut went on. One of the common of a rack and pinion leak is a worn seal. I was skeptical so I took it to an independent mechanic who also diagnosed it as a rear main seal leak. Leakage from the differentials is the most noticeable and significant sign of a faulty pinion seal. The front is the same. There are a number of tell-tale symptoms that often accompany the onset of a rack and pinion leak. While not all of these symptoms will be present in every case, they are prevalent enough to warrant mentioning. Still leaked after replacement so I figured maybe it was defective. Aug 17, 2016 · Many trucks run a rubber vent hose from the vent up into the frame rail. 8 rear end pinion seal after noticing a leak, but I still have a leak after running it about a mile. I have replaced 4 now since l had the dealership replace the first one. Leakage from the transfer case normally occurs at the case-mating surfaces and require removal of the transfer case to reseal. The pinion seal on the stock differential was also leaking so he replaced it using a cross-referrenced part from the number on the original. $420 for dealer to replace seal and flange. Pull the axles, disconnect the driveshaft, now with a rotational torque wrench measure the amount of torque it takes to turn the pinion, write it down. 5" Ford rear). Noticed that it's coming from the drive pinion seal. 0 that appears to have some leakage from the rear pinion seal. Sep 14, 2014 · The drip is just below seal on the floor. That was 2 weeks ago. An alternative is a “power steering stop leak” product. As the part “wraps” the shaft, inside the differential are the small lips of the seal, making the oil that could pass the oil slinger slide up but Sep 29, 2016 · Hate to the dredge this thread up, but I recently replaced my pinion seal thinking it was the cause of my rear diff leak. Jun 28, 2017 · I cannot stop the rear pinion seal from leaking and about to replace my third seal in as many days. However, aggressive driving style and climatic factors might also contribute to fracturing, sealing or shrinkage which can lead to rack and pinion leakage. May 29, 2019 · 2015 - 2020 Ford F150 - Pinion Seal Leak - First post here (have been browsing for a year). Or, could it be that I used gasket seal on the plug? Or am I just nuts on this one. . It's enough that the rear end had fluid on it and it buggered up the ABS sensor. Or, is it just time? Jun 9, 2008 · is it a pinion seal like this one? I agree with the other guys. Leaking pinion seal. I'm guessing that I will need a new pinion seal. It has all new timkin bearings and seals a locker and 80-90 lucas gear oil and everything was cleaned up. Seat new seal very carefully by tapping it in place in a star pattern, or better use a deep seal driver tool. There are repair sleeves for the yokes, but they are only $5. So I did that. After that pinion seal replacement, about every two months, gear oil starts leaking out between the pinion and flange, leaving a very small puddle when parked. There is also a leak on the other side from the seal were the flange comes into the Pinion retainer. The following are several of the most common symptoms associated with a leaking rack and pinion. Nov 7, 2010 · SOURCE: pinion seal leaking check your rear diff vent if pluged clean it out and clean up the pinion seal. although the oil is getting slung around the underside of the truck, on the gas tank/exhaust/etc. On another note, they gave me a Q70L loaner car. How to Prevent May 22, 2017 · Got under my 91 SC this morning to see if I could determine where the rear end was leaking and how low the fluid was. Unfortuneately if I recall you have to loosen that pinion nut and you may even have to pull the pinion back out to replace the seal which is a big job. The local stores didn't have anything that fit and I spent a few bucks to figure that out. Feb 17, 2023 · 2015 - 2020 Ford F150 - Pinion seal leaking - I have been having issues with my rear pinion seals leaking. Replaced the seal at both ends and tightened up a few oil pan bolts to stop three of the leaks. i've also been told that JLR have repaired under goodwill gesture as these are isolated to the 2014 model and mine has only done To help prevent leaks in the first place, avoid full-lock turns when parking or making maneuvers, as this can add excessive strain to the rack and pinion, potentially leading to damage and leaks. So basically both sides of the pinion retainer are leaking. $200 independent shop to replace seal only. > > Regards, > Matt Matt, DIY no problem BUT the leaking seal Oct 1, 2019 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Mar 30, 2016 · The cause of the leak was found to be "RT side rear axle seal was leaking worn seal LB56AA replace one side oil seal". my RR sport which i have had from new 2014 been regularly serviced by main dealer and one specialist is leaking from the rear diff. This is caused by oil leaking onto hot engine parts and smoking. Nov 11, 2023 · 1997 - 2003 F150 - Rear Pinion Seal Leaking Again - Hello, I have a 2003 5. Well, I'm still getting a leak, slightly less, but still a leak. Yoke looked great, everything was cleaned and installed properly (so I thought). It has 250,000 miles on it and was chipped. Looks like I need lots of special tools. Any idea how I can tell what is happening as far as pinion splines or the seal itself? This Is how I replaced a Rear Differential Pinion Seal 2 Jaw Puller https://amzn. You can get a Speedie sleeve to fix the yoke. So, I'm going to go at this again, and replace the bearing/seal probably on both sides of the axle. Does anyone have a ball park idea as to how much this repair cost? Oct 31, 2023 · I have a 2022 with 18k miles on it and I've already got a leak at the rear pinion seal area on the diff. May 8, 2024 · By understanding these potential causes, you can get ahead of leaks that appear, before they become extreme in nature. Below are some specific rear pinion seal replacement cost estimates using common vehicles as examples. Feb 4, 2020 · It’s got a crush sleeve so ya gotta get some measurements first. Removing and replacing the pinion seal or side seals are more complex. I ran my hand over the rear pinion seal area but there wasn't any significant moisture there. Get answers to FAQs about driving with a leak and DIY repair. My question is, Jul 10, 2020 · What are the signs of a faulty rear pinion seal? 1. com/user?u=2716812&ty=hBeer Donations Dec 20, 2022 · 2. Tiny Pool of Grayish or Light Brown Liquid Dec 25, 2012 · Working on 2004 silverado 1/2 ton 4wd. A Timken seal costs about $20, making the total cost about $120. 4L 9. Mar 11, 2015 · The pinion slop then takes out the bearings (no preload anymore), which then causes the yoke to trash the seal. I wonder > if power tools can do this replacement. :shrug: Although when I bought the truck 5 months ago I did notice a smedge of buildup on the housing around the pinion seal. The differential housing seal prevents oil from escaping at the mating surfaces between sections. Apr 14, 2017 · About 5,000 miles ago, the pinion seal was replaced due to leakage between the seal lip and the flange, and it was noted that the pinion nut was looser than expected. The most common symptom of a rear main seal leak is oil leaking and burning oil smells from the engine. Coat the sides of the seal with diff oil. Along with the driver's side drive shaft/rear differential seal leaking the seal where the driveshaft comes out of the front differential is also leaking! All at 78,000 miles! Is this the legendary Toyota reliability I've heard so much about? f. first there was a leak. Aug 5, 2016 · Left the Venza on the lift overnight & found a new wet spot on the floor this morning. Jul 26, 2021 · The two primary reasons pinion seals leak are: 1) a groove wore in the yoke surface, and 2) loose or worn pinion bearings. - $1100 repair bill. I had the pinion seal replaced twice in the last 2 months and the same leak occurs. I used a new SKF Pinion Seal and a new Spicer nut. Oct 1, 2023 · The Symptoms Of Rack And Pinion Leak. Loss of the garter spring will cause a leak. Jan 15, 2016 · It’s designed to protect the gears inside from friction and heat. The rear differential leaks of your vehicle could occur in some of its parts. Jan 26, 2024 · A rear differential leak refers to differential fluid leaking from the rear differential housing of a vehicle. But it could also come from the rear differential cover or at the axle seals. The pinion shaft should only rotate, no other movement. 0. I want to drive the car until the new rear is ready then do a quick R&R of the 3rd member. I didnt get the rotation force reading on the replacements, Jun 6, 2021 · The best way to describe the Ratech 6109 pinion seal is that it is a "shorter" version of the 12 bolt truck pinion seal. Dec 29, 2008 · Well found i have a nice leak coming from the pinion seal last night. not a easy job and a lot of things to check with preloads and adjustments Mar 20, 2020 · AAM 11. A leaking axle seal may be covered by your vehicle’s Powertrain Warranty, so check your car’s brochure to see if this is the case. So, new CV driveshaft, new pinion yoke, and new seal. But now, it is leaking again. I replaced it and it’s still leaking. The oil stain on the ground is directly under the pinion seal. May 22, 2022 · Replacing the rear differential gasket is straightforward once the oil is drained. The part itself is $40-$50 but the remainder of the cost is labor. Feb 21, 2024 · Here are some of the most common symptoms of rear differential leaks: Visible Leaks Under the Vehicle. 1. Dec 30, 2015 · What Causes an Axle Seal Leak? The most common cause of a leaking axle seal is improper axle installation or removal. Truck made it 20 miles and it is dripping off the housing (worse than the last One common issue that can affect engines is a rear main seal leak. Oct 4, 2023 · Hello everyone, I have a 2014 JKU. It should not leak past the pinion seal. There is no need to install the Ratech seal with a gap between the bottom of the seal's flange and the differential housing. The most common cause of loose pinion bearings is improper preload. If replacing your pinion seal is something you would rather leave to a professional, have one of YourMechanic’s certified technicians perform the replacement. Jul 5, 2006 · This is where you need a little black magic getting the pinion preload back to spec. Rear Differential Pinion Seal. Still leaking quite badly. One of the most obvious and easiest to spot symptoms of a rear differential leak is the presence of a puddle of fluid under your vehicle. ive seen this many times . i'm told that its a common problem due to the rear diff pinion seal. Within 4 days it was leaking again. Now you are measuring the rotational torque of the pinion yoke to the crush sleeve, ring to pinion, carrier preload, axles to seals, pinion seal and the drag from the disk brakes (if equipped). Sep 15, 2010 · Leaks at the front and/or rear differential pinion seal and from the transfer case are common. If the leak is coming from the rack and pinion seal you just had replaced, being that the rubber is new, the product would not be able to seal a leak on a rubber that is already revitalized. Oct 29, 2005 · excellent reply brimac. In th Oct 16, 2001 · got a new seal and crush sleeve 2. Use a seal driving tool to hammer in the new pinion seal flush with the lip oft the differential (the Miller Pinion Seal Installer 8891 is widely available on Ebay, sells for cheap and offers great fitment for the E9X M3 diff). After some additional research, I've decided mark the nut and use a beam torque wrench to check the rotational force before and after tightening the pinion nut. Thank you!-BDP May 12, 2024 · Causes of Pinion Seal Leak. Depending on how much oil is leaking and how often you check it, you could be able to drive with a pinion seal leak for weeks or even months before needing repairs. A rear main seal leak can also trigger low oil pressure. I'll see if they can add GM thread sealant to the order. Thanks for any help. Feb 12, 2018 · 2015 - 2020 Ford F150 - Repetitive Pinion Seal failure - Hey everyone looking for some advice, I have a 2015 f150 that has been fairly problematic. Use whatever seems most appropriate to remove old seal. Due to normal wear and tear, it is not uncommon for pinion shaft oil seals to leak. The oil spot in front of the flashlight was the only oil spot on the garage floor, and it didn't look fresh. Yesterday after returning from a weekend trip I noticed diff fluid all over the rear of the truck. Clean everything up well. May 25, 2019 · For now. Typically, the main cause of rear differential fluid leakage is damaged seals. inserted crush sleeve and bearing 5. If you notice leaking oil, then it means that the pinion seal is no longer working as it is supposed to. Wear and tear on the pinion seal over time is a common cause of leaks in the rear differential of a 2020 Hyundai Palisade. If yours stops leaking by lowering the fluid level, go with it. Another cause of axle oil leakage is a worn pinion bearing, which causes the pinion to wobble and destroy the oil seal. . No issues. Aside from a failed differential seal, there can be other reasons why your differential is leaking oil. I pulled the driveshaft loose at the rear yoke only to find that there is a 12point nut on the yoke. As with all seals, the pinion seal can undergo wear and tear, eventually leading to leakage in your differential. Either the seal is bad, or the pinion itself has scratches, gouges, etc on it. to/43i0HtT - All-in-One OBDII Car Scanner Please Subscribe - https://bit. Put a fairly liberal amount of Black RTV on the splines of the pinion flange after cleaning it up. h. I saw no crush collar on it. May 25, 2017 · The vent plugs up causing pressure to build inside the rear differential, the seals failing under the pressure. Pinion preload is initially measured without the carrier installed. The labor rate will be set at $100 an hour to complete the illustration: For a 1998 Chevrolet 1500, the labor time to replace the rear pinion seal is estimated at 1 hour. Maybe it's something else? I had traveled through some farily deep water (Mojave River - Dec 21, 2012 · That's good to know! I've got some parts shipping next week from Gmparts. Pinion seal replacement isn't too costly (cost me about $300 but half of that was servicing the rear differential while I had it in so $150 for pinion seal), but if they don't torque the pinion nut to the proper torque, there can be pinion bearing damage down the road (ask me how I Jun 10, 2024 · The common causes of rack and pinion leaks are defective seals, age and constant usage, wrong installation, and polluted steering oil. No leaks. I've had 2 dealerships ruin rear ends of mine both from replacing the rear pinion seal. I then removed the nut and tried to remove the flange--no go. The following are several potential causes of a leaking front differential. Repair options for a leaking rack and pinion system with power steering Rack and pinion leaks are often expensive to fix as the seals are difficult to service, even by a mechanic. When the truck had 37K mile on it, the same seal started to leak again so I traded the truck in. I replaced the seal and the leak went away, 2 months later the whine showed up. now theres not a leak. I have since replaced the flange and the seal, only to have it start leaking after 4 months again. Rear Differential Leak Can Come from the Pinion Seal. A rear differential pinion seal is a critical component in the differential system of a motor vehicle. > I consulted my FSM.
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