1997 Bonneville SE Mystery Shift Noise

Tiny
CHRIS MCKRACCKIN
  • MEMBER
  • 1997 PONTIAC BONNEVILLE
Hi,
I have a 1997 Bonneville SE, automatic transmission and just recently a new thing has developed.
When I shift from Park to Reverse, (with the window rolled down) I hear a loud, single, metal-on-metal 'popping' sound.
Performance is not affected in any way - but obviously, it's not a normal sound so I'm just wondering what it's a symptom of.
I've poured over your forums and searched online but just can't find an answer.
Any idea's on how concerned I should be, and what the cause really is?
(and, what a 'ballpark figure' estimate I can anticipate to get it fixed - if it's something I should get looked at right away.)

Thanks for your help :)
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Thursday, August 9th, 2007 AT 10:16 PM

1 Reply

Tiny
ZFATMAN
  • MEMBER
I don't know if you already got this fixed, but I just took my car in for a similar problem. I would get a metal popping sound when I changed speeds, especially when shifting into first or reverse. I had it fixed and it turned out to be a loose bolt hitting up against my rear axle. My car was still under warranty, but I wouldn't guess it would be expensive to take in since there is little in the way of parts/labor.
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Wednesday, September 5th, 2007 AT 1:10 AM

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