2008 Impala SS Engine/Transmission questions

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Jan 20, 2009 | 11:43 PM

#21

Nacho SS

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From: 805-818

Quote:

Originally Posted by Tap Dat SS

I'm just saying if you had a major repair, such as engine or trans, they will most likely check and you will be stuck with the large bill.

Well if that part failure can be attributed to that aftermarket piece, then yes. It's hell to go through but its the Mangusson-Moss Warranty Act that is always protector of enthusiasts in these situations.

Jan 21, 2009 | 10:16 AM

#22

tokay57

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Quote:

Originally Posted by radorider03

They have to prove that it was a direct result of the tune.

ok, the tune, cai, exhaust increased the horsepower and torque of the engine and therfore caused the transmission failure because it exceeded the rated capacity.

Jan 21, 2009 | 10:26 AM

#23

tokay57

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and not to mention the changes in shift points caused the transmission to shift at a higher power curve. what kind of proof do you think dealerships need?

Jan 21, 2009 | 03:48 PM

#24

radorider03

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From: Springfield MO

So if you put on a performance exhaust raising the hp and your tranny ***** out, it is not covered by warrenty? Dont think so.

Jan 21, 2009 | 07:49 PM

#25

tokay57

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mufflers no, catless pipes, headers-yes

Jan 21, 2009 | 11:20 PM

#26

Nacho SS

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From: 805-818

Quote:

Originally Posted by radorider03

So if you put on a performance exhaust raising the hp and your tranny ***** out, it is not covered by warrenty? Dont think so.

You sir are right, tokay, read the Mangusson-Moss Warranty Act.

Jan 22, 2009 | 02:23 PM

#27

tokay57

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The Acts basically states that you can porperly install aftermarket parts that is compatible with the original manaufacturer's specifications (i.e. oil, filters, tune-up parts, shocks etc. Headers, a performance Tune , Catless pipes do not meet specifications and given a %@#hole dealer, they can void warranty on a given drivetrain part. However, most likely a dealer cannot deny warranty on a air conditioner because of a performance tune, but they can deny a busted transmission or a burnt piston.

Mar 23, 2012 | 07:17 PM

#28

2008impalaSS613

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I personally cut off my mufflers and down puped my 08ss and put a superchips performance tune on it added 500500 rpm to each gear and it has adversly affected my tranny at wot it will not shift out of first without lifting off the gas so be carful

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Mar 23, 2012 | 07:19 PM

#29

2008impalaSS613

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I did not change shift psi tho and that may be the result of the shift problem too much power to make the shift

May 24, 2012 | 08:59 PM

#30

impalass08

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From: chicago

what is a cal n where could u get the ls4 tuned in or around the chicago land area

Jun 20, 2012 | 11:38 AM

#31

bahdeets

Staging Lane

Joined: Oct 2008

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Cheap insurance and very important to help the tranny and no warranty issues are a trans-cooler (GM makes one specifically for your car P/N 19129783) and an aluminum finned tranny pan.

Aug 24, 2015 | 07:44 PM

#32

Connie Foy-Armstrong

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Joined: Aug 2015

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08 ss slipping transmission

this is just another thing with this car, which I happen to love....my husband is telling me that once they "slip", they are basically "done". Can anyone tell me what if anything can be done?

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