: rear camber - tire wear



bigdude74
06-13-11, 11:57 AM
I have 30,000 miles on my '09 V and it is suddenly experiencing extremely excessive rear tire wear on the inside edges of the tires. The camber, to the naked eye, appears excessive but my dealer says it is to spec and refuses to take responsibility.

i guess my question is - has anyone else noticed this? it seems to have happened since the tsb that replaced the nut in the rear end (clicking noise)

lavaman
06-13-11, 01:52 PM
Your dealer says its to spec. Did he give you a print out from his alignment rack?

Toe (out) will also cause inside edge wear.

How many miles are on the tires?

bigdude74
06-14-11, 10:29 AM
less than 500 miles on the tires. didn't give me the print out but i can ask for it - it's stored on the system. so frustrating. i can see toe and camber is out with my eyes but their screen says it's to spec. other thing that concerns me is the tech says settings are the same for cts and cts-v. sounds fishy to me.

musclesbmf
06-14-11, 10:39 AM
As mentioned, Toe can be more detrimental to tire wear than camber. Definitely get the print out and check the specs.

Mark

GMX322V S/C
06-14-11, 12:28 PM
... says settings are the same for cts and cts-v. sounds fishy to me....and you'd be right. The V uses the option "FE4" specs, which is unique to the V. Find another dealer.

serturbo
06-14-11, 12:32 PM
http://www.cadillacforums.com/forums/cadillac-cts-v-series-forum-2009/212273-2009-cts-v-wheel-alignment-specs.html

lavaman
06-14-11, 03:22 PM
http://www.cadillacforums.com/forums/cadillac-cts-v-series-forum-2009/212273-2009-cts-v-wheel-alignment-specs.html

I would get a second opinion by taking it to a reputable tire shop in the area that can present you with a before/after print out of your alignment. Compare that to the above specs. I'd bet the toe is way out. More-so than the camber. 500 miles of excessive negative camber in the rear should not produce visible wear unless you are lighting them up upon every other acceleration.

baabootoo
06-15-11, 12:26 AM
I didn't see, but are the tires, wheels, and springs stock?