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Gary
Gary, Pontiac Technician
Category: Pontiac
Satisfied Customers: 15702
Experience:  15 years GM master tech/15 years ASE master
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I own a 2006 grand prix it was running sluggish so I changed

Customer Question

Hi I own a 2006 grand prix it was running sluggish so I changed plugs wires and serpentine belt car runs better but when I accelerate the engine light flashes and it kinda skips so it won't go faster
Submitted: 1 year ago.
Category: Pontiac
Expert:  Gary replied 1 year ago.

was it doing this before all that work was done to the car ?

Customer: replied 1 year ago.
No it was not doing anything before the work was done.
Expert:  Gary replied 1 year ago.

ok so since the plug wires where changed it starting doing this ?

did you replace the spark plugs ?

are you 100 % sure the firing order is correct ?

this is a 3.8 engine correct ?

Customer: replied 1 year ago.
replaced. Plugs as well don't know about firing order it is a 3.8 engine
Expert:  Gary replied 1 year ago.

ok and just to be sure it was NOT doing this before the wires and plugs where changed ?

Customer: replied 1 year ago.
No it was not
Expert:  Gary replied 1 year ago.

ok first using these 2 pictures can you be sure the firing order is correct where the wires on the coils are going to the correct cylinders and be sure the plug wires are connected tight to the spark plugs correctly ?

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