2nd rear end not covered due to cold air?

Mat347 · #1 (**permalink**) 03-12-08, 06:14 PM

I've clocked 72k on the V, the first rear-end had a slight whine and was replaced, no questions, at around 30k(cold-air installed at the time). Now that it is clunking and whining VERY LOUDLY, I just got a call and was informed that it might not be covered due to the "modification".

I came here to get some ammo if they want to deny this. I know my rights and realize that THEY must PROVE the modification caused the problem....but also know that GM can be downright STUPID with their warranty denials.

Any info/experiences would be greatly appreciated.

rangerrob · #2 (**permalink**) 03-12-08, 06:35 PM

wow, i'll go down there and help you rough them up if they deny it...

AlmostAV · #3 (**permalink**) 03-12-08, 06:49 PM

Absolute Crap. Search Google for the Magnusson-Moss Warranty Act, and show up to the dealer with it printed out and in hand. I would also bring about the fact (or better yet documentation) that the FTB Is currently investigating the Getrag rearends and there overwhelming failure rate. If they still dont budge, tell them you would like the GM/Cadillac regional represenatives contact info, and go from there. I would NOT TAKE NO FOR AN ANSWER.

jbss71 · #4 (**permalink**) 03-12-08, 08:38 PM

Quote:

Originally Posted by AlmostAV

Absolute Crap. Search Google for the Magnusson-Moss Warranty Act, and show up to the dealer with it printed out and in hand. I would also bring about the fact (or better yet documentation) that the FTB Is currently investigating the Getrag rearends and there overwhelming failure rate. If they still dont budge, tell them you would like the GM/Cadillac regional represenatives contact info, and go from there. I would NOT TAKE NO FOR AN ANSWER.

its not hard to claim the CAI added HP then blew up the rear. the rear problems with these cars does help. but mag-moss act is a joke because GM can drag out the claim for a long time costing you a lawyer and alot of Advil.

your best bet is take the car home remove the CAI and hit the next caddy dealer in the next town over, unless you have pissed your dealer off and they have taken pics, and wrote some kind of report.

rand49er · #5 (**permalink**) 03-12-08, 09:50 PM

I had a very nearly inaudible whine last spring and my dealer replaced the diff just before my maggie install. Check my mods and subtract out the maggie ... and they didn't bat an eye.

And, in your case, I don't believe it's GM that's denying it. The dealer just won't go to bat for you vis a vis GM ... it's the dealer that doesn't want to rock the boat and is whimping out. Maybe their relationship isn't so good with the area rep or some crap 'cause they don't have their act together on other stuff they've turned in before. Anyway, that's my guess.

Go back there and give 'em heck!

jr_vette · #6 (**permalink**) 03-13-08, 10:55 AM

http://www.semasan.com/main/main.aspx?id=60128

nickc50310 · #7 (**permalink**) 03-13-08, 12:11 PM

Quote:

Originally Posted by AlmostAV

Absolute Crap. Search Google for the Magnusson-Moss Warranty Act, and show up to the dealer with it printed out and in hand. I would also bring about the fact (or better yet documentation) that the FTB Is currently investigating the Getrag rearends and there overwhelming failure rate. If they still dont budge, tell them you would like the GM/Cadillac regional represenatives contact info, and go from there. I would NOT TAKE NO FOR AN ANSWER.

I agree. Or if that doesnt work, insert foot into asses as needed!

clark · #8 (**permalink**) 03-13-08, 12:45 PM

Good luck, and I hope you can get it taken care of, but doesn't your warranty expire at 50,000 miles?

AlmostAV · #9 (**permalink**) 03-13-08, 01:21 PM

Quote:

its not hard to claim the CAI added HP then blew up the rear.

That is so lame, and very untrue. First off, people have blew out rears with a completely stock car. Secondly, people have claimed hp losses, zero gains, or very minimal gains up top in the rpm band with the addition of an intake. Thirdly, intakes make there +1-+5 hp gain on top of the rpm band (usually), with the case of our diffs, its the low end torque which kills them, not a 5 hp gain at 5200 rpms. The components of a rear differential should be spec'd to handle more than stock power as its threshold. Your logic is not reasonable.

AlmostAV · #10 (**permalink**) 03-13-08, 01:24 PM

Some of us have extended 100k warranties, you should look into buying one. IMO if your keeping the car past 50k the warranty is a MUST.

jbss71 · #11 (**permalink**) 03-13-08, 07:54 PM

Quote:

Originally Posted by AlmostAV

That is so lame, and very untrue. First off, people have blew out rears with a completely stock car. Secondly, people have claimed hp losses, zero gains, or very minimal gains up top in the rpm band with the addition of an intake. Thirdly, intakes make there +1-+5 hp gain on top of the rpm band (usually), with the case of our diffs, its the low end torque which kills them, not a 5 hp gain at 5200 rpms. The components of a rear differential should be spec'd to handle more than stock power as its threshold. Your logic is not reasonable.

my logic? sadly i know how they think. i've delt with GM on this stuff before. GM's lawyers logic is you changed the way your engine works hence why should GM pay for something that a line can be easy drawn to it affecting ? POS rear gear or not

and no GM's drivelines are not spec'd for more power hence TM

mbgt72 · #12 (**permalink**) 03-13-08, 08:39 PM

Hey, I m new to the forum. I just joined and was wanting to get in touch with jr_vette, but since I don't have 30 posts I can't send him a message and this was the last forum he posted on. I also live in Brentwood TN and am thinking about picking up an 06 CTS-V. I don't mean to be a total newb here but if anyone can get in touch with him (or if you see this yourself jr_vette), I'd appreciate to hear from you about your experience at the Nashville dealers and the V in general, Thanks a ton guys!

my email is: mbgt72@gmail.com
or aim: mbgt72

Appreciate the help and I've really enjoyed reading up everything ya'll are posting through the forum!

Mat347 · #13 (**permalink**) 03-20-08, 07:45 PM

Quote:

Originally Posted by jbss71

and no GM's drivelines are not spec'd for more power hence TM

FYI, the 04-05 Vs rears are well UNDER spec for the 400LS6, '06s got a better rear, but still under rated which still broke. Had they put the same rear as the test car, there would be no issues....GM simply thought the typical V buyers wouldn't actually put their foot down, hence the overweight flywheel(reduce idle vibration) and the mushy bushings used everywhere.

But they ended up covering the rear, they did not replace it...only rebuild it. They said they will "Goodwill it THIS time"......I'll just take it elsewhere next time. They took care of all of my other issues with no problems though.

v-sam · #14 (**permalink**) 03-21-08, 02:53 PM

I will go to your dealer with you and execute the service writer. This is why I have to drive 350 miles to Lindsay for good service. Sorry I know my rant does not help in anyway. Good luck

Seattle CTS-V · #15 (**permalink**) 03-21-08, 04:02 PM

Quote:

Originally Posted by AlmostAV

Some of us have extended 100k warranties, you should look into buying one. IMO if your keeping the car past 50k the warranty is a MUST.

What would be the point of paying for a warranty that ends up just getting denied by bastard dealerships?

I was stock when my first diff blew. Maggied for the next two failures. All three were covered under warranty. They told me that this 4th one is my last "freebie". Great dealership but they acted like they did me a favor by honoring the warranties on a POS rear end.