Hi all new to this forum..I have a 07 and the rear pinion seal is a now a GM recall, I was getting a howl at 60 mph so I took it in and they replaced the compleat rear diff under warranty.

 

Was this pinion seal leak not a recall issue, I think I posted the blurb quite some time ago. Check with the Cadillac recall people and make sure you don't pay out of your pocket if it is.

 

I thought this was well known, but I guess not. I purchased a CPO '05 CTS in December. A week later I saw a news story that reported there was a recall on it for the pinion seal. I checked with safecar.gov and sure enough, NHTSA recall #07V589000, GM recall # NO70204 "pinion seal". It said the recall was supposed to start in Feb. I brought the car back to the dealer for a battery replacement and they told me they "noticed" the rearend was leaking and were going to replace the pinion seal under warranty. Well, I know it wasnt leaking because I checked for leaks and fluid level when I first read about it. I told the service advisor about the recall and he said it 's not a recall, its a technical service bulletin. Right. I think they just don't want to call it a recall. I'm lucky, I guess, I still have 3 years and 60K miles left on the warranty. Best of luck to everybody dealing with this issue. Mike.

 

well i'm new at this and don't check this forum very much. last time i looked there was some hint of rear end problems. after reading this i'm going to check my pin seal. i have an 05 ctsv. it's had a new water pump, the trans has been out three times. two for squeeks, once to be replaced. the trans made a moaning noise at speed and i complained about it, they said that it was normal. two months later they replace it. my car is a garage queen, just over 28000 miles.anyway i'm getting some noise from the rear, but i think.hope, it's just worn tires, it's hard to keep tires on it.