1994 Pontiac Grand Am 1994 Pontiac

Tiny
JARRELLSJ
  • MEMBER
  • 1994 PONTIAC GRAND AM
Engine Mechanical problem
1994 Pontiac Grand Am 4 cyl Front Wheel Drive Automatic

When my 1994 grand am is ideling the exaust is making a poofing noise and the engine shakes every couple of seconds as its running and as I accelerate the gas the louder the exaust gets with the poofing noise.I have changed the plugs and wires less than a month ago.
Sunday, August 16th, 2009 AT 12:07 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Sounds like a misfire. Remove plugs and check for signs of misfire (gas, oil soaked).

Could also be a clogged convertor, in which case a backpressure test would have to be performed.
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Sunday, August 16th, 2009 AT 8:59 AM

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