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#2 SPARK PLUG IS MIS-FIRING

Tiny
JOSEPHMANUEL69
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 143,000 MILES
I OWN A 1999 PONTIAC GRAND AM SE WITH A 2.4 L TWIN CAM. MY #2 SPARK PLUG IS MIS-FIRING ON AND OFF. I CHANGED OUT THE PLUGS, PLUG BOOTS, COIL PACK, CAM SHAFT SENSOR, FLUSHED THE MOTOR, WHAT ELSE CAN I TRY?
Friday, March 30th, 2012 AT 4:24 AM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Check or replace the plug. Make sure the injector is getting power.
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Friday, March 30th, 2012 AT 4:26 AM
Tiny
JOSEPHMANUEL69
  • MEMBER
  • 25 POSTS
The injector is getting power, and the plugs are new. It runs good if I disconnect the cam shaft sensor.
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Friday, March 30th, 2012 AT 4:39 AM
Tiny
JOSEPHMANUEL69
  • MEMBER
  • 25 POSTS
The service engine light and trac off light is going on and off now. The car is still running poorly
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Sunday, April 1st, 2012 AT 5:34 PM
Tiny
JOSEPHMANUEL69
  • MEMBER
  • 25 POSTS
ALL ALONG IT WAS THE INTAKE MANIFOLD GASKET!
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Thursday, August 16th, 2012 AT 5:31 PM

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