Auto Transmission Leak

[C1Trob]

Wanted to let all those with Auto Trans. know that you might want to have a look at the rear or aft housing casing of the Auto Trans.
Mine was seeping fluid and was diagnosed as: "Failed Rear Seals" after 34months. (Could be due to the Arid tempratures here)
I have an "aftermarket" extended warranty plan from United Auto Care (Platinum Plan)
I took the to Freeway Chevrolet in Chandler AZ and they honored this aftermarket plan.

They replaced both seals and completely cleaned off the stained case.
I also had them drop in the Servo while there, and WOW, what a difference.

[Mike in AZ]

I like to plug those guys. They have always gone above and beyond my expectations for support.

Chris Esquer is the Service Writer to seek out. He's a big hearted guy with his common sense firmly grounded. No BS, no lies, just a great guy to deal with. If it's gonna be a problem, he'll tell it to you straight there too.

Regards

[Greg Ducato]

Glad they fixed it for you. I agree dry climates are a bit tougher on a seal.

[JimGnitecki]

There's another possible explanation for that seal failure, and I hope I am wrong about this.

That seal is typically the first casualty when the driveshaft gets enough out of balance to begin chewing on it.

THAT driveshaft imbalance is the almost certain result you get IF you took your SSR in for service on the driveshaft "ting" problem, and if the dealership, following GM's instructions at the time, replaced the shaft with the ill-conceived "donut" version (search for my 2005 posting on this using the search key "donut").

Briefly, the donut weight on the front end of the shaft was a "fix" that GM tried to alleviate the "ting" problem. It worked for a while, but then the rubber in the composite metal/rubber donut failed, the heavy donut went wildly out of balance as a result, and ttacked the tranny tailshaft seal, yoke splines, and tailshaft casting, in that order. The only warning some folks got was a vibration detectable at certain highway speed ranges, where the donut and shaft made particularly destructive music together.

Just take a look at the front end of your driveshaft and see if there is an annular donut, maybe 3 or 4 inches in diameter and only maybe an inch thick, on the yoke shaft. If so, get that out of there asap as it is only a matetr of time before the rubber degrades and the imbalance forces start doing the damage.

I hope this is NOT what you find.

Jim G

[VEGASSR]

Originally Posted by JimGnitecki

There's another possible explanation for that seal failure, and I hope I am wrong about this.

That seal is typically the first casualty when the driveshaft gets enough out of balance to begin chewing on it.

THAT driveshaft imbalance is the almost certain result you get IF you took your SSR in for service on the driveshaft "ting" problem, and if the dealership, following GM's instructions at the time, replaced the shaft with the ill-conceived "donut" version (search for my 2005 posting on this using the search key "donut").

Briefly, the donut weight on the front end of the shaft was a "fix" that GM tried to alleviate the "ting" problem. It worked for a while, but then the rubber in the composite metal/rubber donut failed, the heavy donut went wildly out of balance as a result, and ttacked the tranny tailshaft seal, yoke splines, and tailshaft casting, in that order. The only warning some folks got was a vibration detectable at certain highway speed ranges, where the donut and shaft made particularly destructive music together.

Just take a look at the front end of your driveshaft and see if there is an annular donut, maybe 3 or 4 inches in diameter and only maybe an inch thick, on the yoke shaft. If so, get that out of there asap as it is only a matetr of time before the rubber degrades and the imbalance forces start doing the damage.

I hope this is NOT what you find.

Jim G

A picture is worth a thousand words!

[JimGnitecki]

See photo below

and also

Ping me if you have a transmission fluid leak or speed sensitive noise or vibration

Jim G