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2006 Pontiac Grand Prix random misfire; replaced plugs,

Customer Question
wires, 2-5 coil; still not...
2006 Pontiac Grand Prix random misfire; replaced plugs, wires, 2-5 coil; still not working; cruise control stopped working at the same time the misfire started; also getting muffled noise or nock with rough idle and acceleration; also very poor gas millage.
Submitted: 2 years ago.Category: Pontiac
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Answered in 5 minutes by:
2/12/2016
Pontiac Mechanic: Ron Z., - Pontiac Tech - replied 2 years ago
Ron Z.
Ron Z., - Pontiac Tech -
Category: Pontiac
Satisfied Customers: 20,074
Experience: 18+yrs experience. State Inspector and Pontiac Diagnostics
Verified

So you replaced the 2-5 coil, and there is no spark coming from this coil?

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