Pontiac Grand Am P Codes (Powertrain) P0300 - P0399

Browse Pontiac Grand Am P Codes (Powertrain) P0300 - P0399 questions and answers. Choose a question that matches your symptoms.

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2003 Pontiac Grand Am P0306 Cylinder 6 Misfire

2003 PONTIAC GRAND AM

I Just Returned From A 1800 Mile Road Trip And The Car Ran Great. The Day After I Returned Home, It Started Running Really Rough While At...

3 ANSWERS

Asked by SoundProof

2002 PONTIAC GRAND AM

I Recently Had My Check Engine Light Start To Blink. Tested The Code And It Was P0300. I Changed The Plugs, Coil,icm,checked Vaccum,fuel...

3 ANSWERS

Asked by jediclon40

1998 PONTIAC GRAND AM

I Have A 1998 Pontiac Grand Am Gt 3.1 V-6 That Is Showing A Po301 Reading That Says A Misfire In Cylinder # 1.i Have Replaced Wires,plugs...

1 ANSWER

Asked by JimmyE

PONTIAC GRAND AM

Hi I Am Having An Issue With My 99 Grand Am. It Has A 3.4l V6 3400 Engine, With Approx. 87k Miles. Here Is Information On What We've...

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Asked by schicherchia

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