08 Grand Prix GXP 5.3

Asked by Jon Feb 27, 2018 at 04:37 PM about the 2008 Pontiac Grand Prix GXP

Question type: Maintenance & Repair

P0300 code came up I've changed all coils and
plugs including camshaft but still misfiring what
can it be

1 Answer

challyb2008 answered 6 years ago

it sounds like it might be your torque converter. does shake when you put it in drive and hold the brake and then idle higher when you put it j neutral? And does it appear to be eating a lot more gas since you had the problem If so then you may need your torque converter replaced.

Mark helpful

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