engine rattles

1999 GMC JIMMY
145,000 MILES
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SWEETHOPE ALABAMA
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  • 2 POSTS
1999 gmc jimmy engine rattles when placed in drive or reverse. Runs fine when cold until idle changes. does not rattle in idle. The rattle seems to be coming from the front of the engine but does not occur when in park. Also, has an exhaust leak or noise coming from tailpipe. Almost like a backfire.
Mar 10, 2012 at 10:50 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
It sound like it could be the flexplate that is broken.
Mar 10, 2012 at 10:56 AM
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SWEETHOPE ALABAMA
  • MEMBER
  • 2 POSTS
Thanks for the advice, I looked at the flexplate and I can see cracks. Do I need to pull the trans to change it?
Mar 10, 2012 at 3:36 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Yes you do, have fun!
Mar 10, 2012 at 3:48 PM
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