Alternator chirp/squeak on hard acceleration shifts

[jon]

I have the chirp that so many mention on the 1-2 shift during medium to hard acceleration. Mike in AZ mentioned in another thread that GM went to a clutched alternator pulley in 2005 to eliminate this problem.

So here's the question... What is the preferred solution to this problem? Will the dealer replace my pulley with the new design if I take it in with this problem? Is there a TSB?

OK, so that was three questions, but important ones. While I like my local service dept. at Banks Chevrolet, there aren't many SSRs up here in NH for them to practice on.

Thanks in advance!

Jon

P.S. 2005, Auto transmission, made in October of 2004, new to me this year.

[frank belk]

Originally Posted by jon

I have the chirp that so many mention on the 1-2 shift during medium to hard acceleration. Mike in AZ mentioned in another thread that GM went to a clutched alternator pulley in 2005 to eliminate this problem.

So here's the question... What is the preferred solution to this problem? Will the dealer replace my pulley with the new design if I take it in with this problem? Is there a TSB?

OK, so that was three questions, but important ones. While I like my local service dept. at Banks Chevrolet, there aren't many SSRs up here in NH for them to practice on.

Thanks in advance!

Jon

P.S. 2005, Auto transmission, made in October of 2004, new to me this year.

they replace the alt with part # 15288861 bull # 1700398

[jon]

Thanks Frank! I guess a little more digging would have turned up the TSB. I was able to dig up the text of the TSB posted by wingrider in this other thread.

Document ID# 1700398
2005 Chevrolet SSR


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Subject: ASI Resolution - Serpentine Belt Chirp and/or Squeak Noise During Hard Acceleration or Wide Open Throttle (WOT) While Upshifting or Downshifting (Replace Generator) #04-06-01-031A - (08/30/2005)



Models: 2005 Chevrolet SSR




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This bulletin is being revised to include repair, part and labor information. Please discard Advanced Service Information Bulletin 04-06-01-031 (Section 06 -- Engine/Propulsion System).


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Condition
Some customers may comment on a chirp and/or squeak noise from the front of the vehicle during hard acceleration or WOT on upshifts or downshifts.

Cause
It is possible that the serpentine belt may momentarily slip on the crankshaft pulley during hard acceleration or WOT while upshifting or downshifting due to the inertia of other components on the serpentine drive belt system, causing a chirp noise.

Correction
Replace the Generator, P/N 15288861. Refer to Generator Replacement (SI Document ID# 1532884).

Parts Information
Part Number
Description

15288861
Generator


Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

J4100
Generator Assembly - Replace
Use Current Published Labor Time


Dealer Action
Contact customers that were told they would be notified when a fix became available.



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