: Two cts's in 2009 both with bad rear axles



vince del
12-09-09, 05:45 PM
I would like to know if anyone has a 2009 CTS-v and had the rear axle(rearend) replaced. In 2009 I purchased a CTS-di 6 speed at 600 miles the rear end had to be replaced.Sept of this year I had 16,000 miles on that car no other issues and traded for a new CTS-V on the lot.At 6,000 miles this car now is having the rear end rebuild.Two CTS's in less than a year. Today I told the Service Manager I'm losing faith in Cadillac. has anyone had same issues. Thanks Vince

commander112
12-09-09, 05:49 PM
Not a common issue on the current car. Some have reported that their car arrived low on diff. fluid. Perhaps yours was too low to properly lubricate the parts. Get it fixed and don't look back.

vince del
12-10-09, 08:00 PM
Your Right Cammander, about not looking back! Before I purchased the V I ask to the car put up on thier lift and did an inspection the rear fuild was full. I pick my V up this afternoon and for now It's seems to be fine 135mph on the home. Thanks.

commander112
12-10-09, 08:11 PM
Your Right Cammander, about not looking back! Before I purchased the V I ask to the car put up on thier lift and did an inspection the rear fuild was full. I pick my V up this afternoon and for now It's seems to be fine 135mph on the home. Thanks.

Nice way to break in that new rear end! Third one could be a charm. Take it easy until you get some miles on that thing.

The Tony Show
12-10-09, 08:13 PM
Are you breaking them in properly, or just mashing it right out of the gate? Parts with clutch plates and meshing gears like rear diffs and transmissions need to be broken in properly to prevent noise and premature wear.

135mph on a brand new diff makes me wonder. :hmm:

vince del
12-11-09, 06:03 PM
Tony,I haved asked the dealer service team,when I first purchased the V. They told me the first 1500 miles on a new V, not to exceed 80 mph and no down shifting to slow the car down,so I babyed it for 1800 miles.As far as the rearend yesterday what was replaced was 8 clutch plates.this time Cadillac upgraded I'm told to ceramic coded instead of brass. Now the car has 6,000 miles, Yesterday the service specialist said to take it easy as far as no quick starts for 500 miles,as far as speed as fast as I want. As you know from 80mph crusing it doesn't take long to get to 135. Thanks.

Krug Ford
12-11-09, 06:28 PM
I have not seen any in here for problems like that.

vince del
12-22-09, 07:08 PM
an update.drove a new 2010 CTS-V guess what,if the the car is cold when putting the front wheel at full turn the car skipps, its worse in reverse.Every one on the lot did it. My 2009 had the 8 clutch plates upgraded to ceramic coated. It's has gotten better. Also their is not a rear end for a V in the country per my dealer He is contacting Cadillac to confirm "That's the way it is" Makes some sense to me to get 550lbs torqe those plates have to be tight. To me its not a big deal as long as it never gets worse than that.

Karch
12-22-09, 08:01 PM
Perhaps an additive would help?

commander112
12-22-09, 08:16 PM
an update.drove a new 2010 CTS-V guess what,if the the car is cold when putting the front wheel at full turn the car skipps, its worse in reverse.Every one on the lot did it. My 2009 had the 8 clutch plates upgraded to ceramic coated. It's has gotten better. Also their is not a rear end for a V in the country per my dealer He is contacting Cadillac to confirm "That's the way it is" Makes some sense to me to get 550lbs torqe those plates have to be tight. To me its not a big deal as long as it never gets worse than that.

I don't believe the car is skipping because of anything related to the rear end. The skipping you are getting is coming from the angle of the front wheels and the tires are simply scrubbing a bit. My car does this primarily when backing up and I do not need to be anywhere near full lock to get it to do it. It does appear to be a fairly violent event when it happens. I have has passengers ask about it too.

RWFJR
12-22-09, 08:28 PM
I don't believe the car is skipping because of anything related to the rear end. The skipping you are getting is coming from the angle of the front wheels and the tires are simply scrubbing a bit. My car does this primarily when backing up and I do not need to be anywhere near full lock to get it to do it. It does appear to be a fairly violent event when it happens. I have has passengers ask about it too.

Ditto...

Razorecko
12-22-09, 09:01 PM
i'm more curious about this brass to ceramic coated change....when did this happen and why ? Ed needs to chime in on that =)

Z06ified
12-23-09, 10:29 AM
The skipping you are getting is coming from the angle of the front wheels and the tires are simply scrubbing a bit.

Yep, my '02 Z06 does it too in the cold when making a slow big turn in a parking lot. It's the cold on the wide tires that makes them kind of skip across the pavement in slow turns.

garfin
12-23-09, 10:52 AM
FWIW, I was looking at a used '06 STS-V a few weeks ago. I copied down the VIN and had my dealer run a Vehicle Service Enquiry on the car so I could see what warranty work had been done... and the rear end had been replaced - not once but twice!

Best regards,

Elie

vince del
12-23-09, 12:10 PM
yes the dealer had added additives to the rear fluid didn't help. Two weeks ago my 8 clutch plates were replaced from factory brass to a GM upgrade ceramic plus additive again.I inspected the original plates and they looked excellent.Its feels better than the brand new 2010's I tried Monday. I spent some time(this dealership is tops in my book.This is my 22nd GM car in the last 17 years and this is my first with this dealer).with two specialist one is only tranny and rear end( 26 years experience) the other is thier front end specialist. Alone with each of them,they both told the same thing with this much torque it is not that uncommon with GM vehicles They shared that in "06 and "07 CtS's rears were replaced a lot. Neither one thinks that this will lead to bigger issues. Their Service manager is contacting Cadillac(per my request) to get an admission that this is a normal condition. The service manager also said that if I insist on a new rear end he will have it installed, however he already checked and their are none in this country right now to be had. I like this car alot it's my every day driver 50,000 miles a year and fun to drive.