Report all diff problems

[stkshkr]

The pinion seal for my leaking 06 diff is on back order, I wonder if it's a national backorder?

[talalhz]

Repoted

[tweeter81]

The diff on my 2004 V (stock) started whining at approximately 9000 miles and over the course of the next 6000 miles I had the fluid in it changed 3 different times by Cadillac in order to quiet it down. Lately the whining has been getting much worse and I took it in to the dealer and they agreed to replace it and I am now getting an '06 replacement diff at approximately 15000 miles.

[ace996]

Unfortunately, I found that the '06 diff started whining sooner than my '05 diff. When they replace it, break it in real easy for 500miles...then dump the fluid and add the heavy-weight Redline or Royal Purple. That may keep it quiet for a while.
Good luck,
ace

[Joey'sVee]

My fourth diff (which is an 06) is whinning very bad. My car is bone stock at this point. I got word yesterday that they are not going to replace the diff...so we'll see how they like buying the car back.

[CVP33]

Originally Posted by Joey'sVee

My fourth diff (which is an 06) is whinning very bad. My car is bone stock at this point. I got word yesterday that they are not going to replace the diff...so we'll see how they like buying the car back.

I believe I still hold the record with 6 documented rear diff' failures on two V's. At least I won something!

[FAT ANDY]

2006 CTS V

Differential Failure At 1485 Miles

Pretty Shitty If You Ask Me

DEALER WOULD NOT WARRANTY MY CAR

[stkshkr]

Originally Posted by FAT ANDY

2006 CTS V

Differential Failure At 1485 Miles

Pretty Shitty If You Ask Me

DEALER WOULD NOT WARRANTY MY CAR

Go to another dealer and/or contact Cadillac customer service

[wildwhl]

Originally Posted by CVP33

I believe I still hold the record with 6 documented rear diff' failures on two V's. At least I won something!

I'm quite certain we've documented more than 6 rear failures on you CVP

[CVP33]

Originally Posted by wildwhl

I'm quite certain we've documented more than 6 rear failures on you CVP

Thank god yours is still snug with no leaks. Makes for a much better ride. Plus, I love seeing this look on your face.

[rand49er]

Noticed mine whining today for the first time. One of the very few times I've driven it even close to what someone would call "a bit hard" was yesterday when I got the tires to spin a bit after slipping the clutch in 1st gear, but never did get to WOT and backed off immediately when I experienced some wheel hop. This was absolutely NOT a "hole shot" as a description for my takeoff.

I have 22,500 babied miles on my car, and I'm the original owner. It had 56 miles on it when I took delivery from Superior Cadillac in Brighton, Mich. I average 22-22.5 MPG is all around driving, start out in 2nd gear most of the time, got 15k on my original runflats (could have gotten a couple of more k out of them), and have my 3-1/2-year-old son in the car with me 90+% of the time, thus I'm very careful.

The car only whines in 6th gear at light acceleration conditions at about 40-45 MPH; doesn't do it in 5th or 4th, only 6th gear. I suspect that this is just the beginning of more whining yet to come. Given how I drive this car -- let me restate this: I absolutely baby it! -- this is absolute BS! What pisses me off even more is that I've modified the exhaust system with headers, hi-flow cats, and a Corsa, and if I was ever denied a warranty fix because of that, I would be fuming! Hell, I wouldn't have bought the damn thing and put a clear bra on it if I wanted to abuse it, I would have leased it, then driven it hard! I want to KEEP this car!

BTW, the NHTSA website at the beginning of this does not work.

Anyway, I'm probably all preemptively worked up and upset just thinking that they'll try to deny a replacement on warranty. If this post serves as documentation, then so be it. My conscience is completely clear on this matter.

[jspridge]

I just got my car back from the dealer on Friday. The car now has it's third differential. Filed complaint this morning...

Without my complaint, the site lists the following numbers of complaints by year:

2003: 3
2004: 19 (20 including my second)
2005: 23
2006: 3

[The Tony Show]

'04, 22K miles. Diff was whining above 45 mph, so dealer changed fluid. That resulted in a loud popping and groaning noise whenever I turn the wheel in a parking lot (probably binding/locking up).

New diff on order.

[v-ape]

I posted on here earlier. I'm on my 3rd diff now. 1st one whined and they tried to fix it 3x's, no luck, the 2nd time they put the parts to an 06 in the pumpkin, still whined. 3rd time they gave me a new 06 pumpkin w/ parts. It still whines, but only in 6th under light accel. This is a COMMON problem with more than my car. My symptoms are exactly the same as others on here.
Is wheel hop something that makes it worse? I have been babying my car, but honestly, I didnt buy it to baby it. I bought a 400hp car to have fun. I dont drag race, but I like a nice spirited run around a track everyonce in a while and I'm a little scared to take mine out to VIR or Summit Point because I may hurt the car... Also since GM isnt fixing the problem, the value of these cars is going down. Too bad they hook a bullet proof engine up to a shotty (replace o with i if you like) differential.

[StealthV]

Wheel hop and 25% Getrag replacement rate? Come on GM; do the right thing. It's called product support and keeping customers happy. Happy customers will buy your products again in the future and tell all their friends. Check the resale value of the V --- it should hold like a C6 Z06 and it's not...

Making the V a 100% complete vehicle that lives up to expectations is not rocket science. With limited production quantities, it isn't an unmanageble cost considering lost future Cadillac sales from all of us current owners. Do we have to come up with the fix and build the business case for you since all your 6-Sigma black belts are too busy?