1994 Pontiac Grand Am Rattle in idle

Tiny
KMSHAFFE
  • MEMBER
  • 1994 PONTIAC GRAND AM
1994 Pontiac Grand Am 4 cyl 118000 miles

When starting car, there is a rattle on the underside that sounds to be coming from the front end. The rattle continues in idle and during low rpms, but ceases after accelerating. Turning the a/c on makes it sound much worse. I suspect either the catalytic converter or possibly the heat shield. Any ideas? Will it be possible to do the repairs myself?
Thursday, December 11th, 2008 AT 9:14 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi:
Most likely it's the heat shield. Take a rubber mallot and tap on the exhaust system. If it's the shield, get a couple large band clamps and tighten them around it.

Joe
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Saturday, December 13th, 2008 AT 2:18 PM

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