Diff Leak ???
Thread Starter
Le Mans Master
Joined: Apr 2000
Posts: 5,981
Likes: 0
From: Houston,Tx. USA
Diff Leak ???
Who's had the diff spring a leak? I get a very few small drops on the floor, after a good afternoon of cruising. What was the problem, what fixed it & whom; I've got about 14k miles and 3.15's.
Drifting
Joined: Apr 2001
Posts: 1,779
Likes: 6
From: LOS ANGELES CA.
Re: Diff Leak ??? (Chopper Larry)
I found the bolts around the pan were loose on my automatic transmission.I tightened them up and it stopped the leak.I don't know if this is your problem,but its worth a try. :chevy :chevy :flag :chevy :chevy
Advanced
Joined: May 2003
Posts: 83
Likes: 0
From: Medford NJ
Re: Diff Leak ??? (ROD BROWN)
this is a common problem. my diff. is leaking and i will have it fixed soon. the inner seal goes on the C5's. i have only 5000 miles on mine and its five months old and the seal already went.
GM knows about this and will fix it for you. I have no faith in GM service anymore so i will go to my own mechaninc and try to have GM reimburse me. you may have had better luck with GM so you may want to go to a dealership for the repair.
just try to get it fixed soon. you may also want to put something down underneath the rear so it doesn't stain your driveway/garage floor.
GM knows about this and will fix it for you. I have no faith in GM service anymore so i will go to my own mechaninc and try to have GM reimburse me. you may have had better luck with GM so you may want to go to a dealership for the repair.
just try to get it fixed soon. you may also want to put something down underneath the rear so it doesn't stain your driveway/garage floor.
Le Mans Master
Joined: Jan 2003
Posts: 6,298
Likes: 0
From: Tyler TX
Re: Diff Leak ??? (Chopper Larry)
I have!
:banghead: You may have a seal going bad or it could be coming from a small overflow valve. The dealership fixed it for me. :thumbs: :iagree:
Who's had the diff spring a leak? I get a very few small drops on the floor, after a good afternoon of cruising. What was the problem, what fixed it & whom; I've got about 14k miles and 3.15's.
Burning Brakes
Joined: Aug 2002
Posts: 929
Likes: 1
From: West Palm Beach FL
Re: Diff Leak ??? (Chopper Larry)
Mine started leaking around 2,000 miles. Pathetic.. especially figuring my car was an audit/test car at the factory. Due to their ignorance in ignoring this problem that has happened for several years according to some insiders I'm considering letting the diff run dry and have them send me a new one, and have them pay for the labor to install a 3.42 diff and sell the brand new 3.15 they replace with :D
Instructor
Joined: Apr 2002
Posts: 247
Likes: 2
From: Naples Florida
Re: Diff Leak ??? (Chopper Larry)
Last week I posted "I had a conversation with the C5 mechanic at my dealership today about the leak around the rear diff of my C5. I asked what the charge would be to replace the axel seal and he immediately asked whether I knew if the fluid was coming from the vent on the top of the diff or from the seal area around the axel. He said the design of the C5 rear diff places the gears so that during high speed sustained runs the gear "throws" the lubricant straight up at the location of the vent. He says GM is looking to change this design so this does not happen. He said that if I put my finger up on the top toward the driver side of the diff housing and feel for lubricant by the vent that this would tell me if it is a vent leak or a axel seal leak. I do notice the leak after high speed track events.
Thought I would just pass this along. My luck is that I have both maladies"
Bill
Thought I would just pass this along. My luck is that I have both maladies"
Bill
