1994 GMC Sonoma rattle noise?

Tiny
MAICOH
  • MEMBER
  • 1994 GMC SONOMA
Transmission problem
1994 GMC Sonoma 6 cyl Four Wheel Drive Automatic 200K+ miles

I had the transmission filter and fluid changed and the catalytic converter replaced in February. Now I have a rattle noise whenever I'm stopped and in gear(stop sign, red light, etc.). As soon as I start going again or put the truck in park the noise goes away. Any ideas on what it might be? Thanks.
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Thursday, May 29th, 2008 AT 11:55 PM

2 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Yeah, its more than likely a heat shield or you muffler
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Friday, May 30th, 2008 AT 12:00 AM
Tiny
ALIENH
  • MEMBER
  • 7 POSTS
I had the same problem when I took off from a stop I thought it was the heat shield too I found it was a loose brake line vibrating by the firewall it had popped out of the nylon bracket
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Sunday, February 15th, 2009 AT 3:27 AM

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