I replaced the plugs and wires and now the car is not running right

2002 PONTIAC GRAND AM
141,256 MILES • 3.4L • AUTOMATIC
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CYNTHIA MALLORY
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  • 1 POST
Changed plugs and wires now car will not run right. could the suggested firing order be wrong ? If not what could be the problem?
May 10, 2020 at 8:39 AM
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good morning,

Yes, check the firing order.

I attached a picture for you to test the firing order.

Make sure the wires to to the correct cylinder with the numbers on the picture.


Roy
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May 10, 2020 at 8:50 AM