Transfer case seal leak

Vehicles equipped with four wheel drive employ a gearcase to switch among two wheel drive, high gear four wheel drive, neutral mode, and low gear four wheel drive. HOW TO REPLACE A LEAKING REAR TRANSFER CASE OUTPUT SEAL CHEVY TAHOE, HOW TO REPLACE A OUTPUT SEAL , HOW TO REMOVE A OUTPUT SEAL , HOW TO REMOVE A DRIVESHAFT. The transfer case output shaft is the part that connects the case to the axle. In order to repair a leaking transfer case , you first have to know where the leak is. Below is a list of ways to find the leak in your transfer case.

Most automotive parts stores sell a fluorescent dye that you can add to the fluid of your transfer case. Lubricate the seal lips with petroleum jelly or with transmission oil. Install the transfer case shield.

Refer to Shield Replacement. I see a small amount coming from the front input saft seal , which I will replace.

The one that concerns me is the leak that appears to be coming down from the top of the case. I just replaced my TC seal last weekend. Transfer Case Pinion Seal Leaking. It is real easy do replace. T- Case , and verified that the seal.

I have a leaving that’s coming from the transfer case. I unbolted and cleaned up the transfer case skid plate and saw a marginal amount of oil also on the t case. Cleaned and bolted everything back up and the leak has come back.

I was changing the oil today and discovered that the transfer case skid had a coating of fluid on it. There was also fluid slung onto the floor, not driveline grease. I have seen the front seal go bad on the transfer case and leak transmission fluid in the transfer case. Also they have been known for the oil pump in the transfer case to wear a hole in the back case.

I brought the jeep into the dealer to have them do an inspection and confirm my findings. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.

Thanks in advance for any advice you can provide. I recently noticed a very small amount of dark fluid (not motor oil) on the garage floor and had my local dealer diagnose the problem as a leaking output seal on the transfer case. The output shaft area seems to leak a lot of oil from the transfer case.

It gets my parking brake drum all oily and a puddle develops on the ground. In addition to changing the transfer case fluid with one of the Royal Purple fluids, I plan to add Lucas Oil Transmission Fix. There’s a fair chance this is the source of your problem. Also the fluid gets thrown around in between the transfer case and transmission and causes the whole top and bottom of the transfer case to get wet.

At 4000mil (about months later), oil leak through transfer case seal was foun again. The car is no longer under warranty. Independent shop gave me a repair quote of almost $000. With the seal and labor you are looking at around $100. Its common spot to leak but have them make sure the yoke and bushing is good.

A leaking transfer case could mean that you’ve had a seal failure but it could also mean that there is an issue inside the transfer case itself. If a bearing goes bad inside a transfer case , it could cause it’s output shaft to wobble and thus causing a leak at the oil seal. Fixing the transfer case shift motor leak from within. On mine, it wasn’t the shaft seals that were leaking, but the large O-ring from the shift motor to the transfer case or T- case.

Finally decided to bite the bullet on this and get the leaking t- case shift motor fixed. You will have to fix the leak , pure and simple. Yes, there is another seal on the transfer case shaft.

From everything I rea it is far less likely to leak because the transmission fluid temperature is much higher, resulting in the seal wearing quicker. The solution offered is to replace the transfer case based on a leak. Find a mechanic, figure out what the problem is and what might be required to fix the problem. I had a very long post and now lost it all. So this post is the condensed version!

Leak from the transfer case is a common problem and it need to be solve out as soon as possible. If the leakage is long duration it can damage your transfer case otherwise your trasmission can get destroyed. I notice a leak because the is oil on my back window and on the waverunner. But like I said may show up sometimes but others not. I was told by a local shop that the transfer case seal was bad.

For the last 30K or so (160K total), I have had a leaking rear output shaft seal on the transfer case. I replaced the seal several times ($each time) and it would stop for around 5K then start leaking again. I tried buffing the sealing surface on the slip-yolk (the piece that goes into the t- case ) and it would still leak. Your transfer case can actually be doing the hitting too.

If there is an internal issue, it can pop and cause drag. I recommend a good diagnosis from a qualified local mechanic. Perfect fit and not too bad of a job to replace.

THAT har few hours but you definetly dont have to drop the transfer case or anything like that. My transfer case was leaking so I had front output shaft seal , rear output seal , input seal replaced. No leak while the jeep was parked but when I drove it the t- case fluid was flying everywhere under the jeep and collecting in the pan. Part is about $ but labor is around hours, because we have to completely remove the transmission and exhaust system to get to the gasket. The seal goes bad and it allows tranny fluid to go into the transfer case but not the other way back into the tranny.

The leak occurred again in transfer case at 126k miles. Now the dealer is recommending the replacement of seals only. Nissan refused to acknowledge issue with their garbage design. There is a seal for the input shaft of the transfer case.

That is intended to keep the transfer case oil INSIDE the transfer case and the transmission oil OUT of the transfer case.