1993 Pontiac Grand Am big problem

1993 PONTIAC GRAND AM
45,000 MILES • 4 CYL • FWD • AUTOMATIC
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FRANCK
  • MEMBER
  • 1 POST
Hello,
I have a 1993 grand am pontiac.
running same 3 cylinder, and I already change :
2 coils
control module
Spark Plug
Spark Plug Wire Set
Ignition Coil Housing
Ignition Knock (Detonation) Sensor
Air Charge Temperature Sensor
Ignition Coil Connector
map sensor
oxygen sensor

bur already same problem.

I have a gazoline odor and nor runnig well

and I live in NEW CALEDONIA Island it's o difficult to find somedy to repair

need your help

Franck
please mail
fpetitjean@kalolo.com
Jan 28, 2009 at 5:05 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
I have a 1993 grand am pontiac.
running same 3 cylinder, and I already change

Check the compression/injector on the cylinder that is misfiring

Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Jan 28, 2009 at 6:12 PM
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