2006 GP 3.8L 156k miles. Car was dropping cylinders. I tested coils and found a bad one. Replaced coil and problem still happened. Tried to drive it home and the check engine light started flashing.

Asked by Nov 19, 2015 at 07:49 PM about the 2006 Pontiac Grand Prix Base

Question type: Maintenance & Repair

Should I swap the ICM? Or something else?
Can't find much online except for saying it is
a bad coil...

1 Answer

68,735

When I find 1 bad coil pack, I always replace all 3. If one is bad, the others are soon to follow. Double check that the plug wires are hooked up to the correct coil pack towers. Has the car ever been turned up? With recommended tune ups every 100,000 miles it's not unheard of for the car to never have been tuned up at 156,000 miles. A flashing check engine light is warning you that the engine is misfiring and damaging the catalytic converter. HTH. -Jim

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,350
#2 Tom Demyan
Tom Demyan
Reputation 2,950
#3 munron
munron
Reputation 2,290
View All

Related Models For Sale

Used Chevrolet Impala
555 Great Deals out of 35,533 listings starting at $899
Used Dodge Charger
531 Great Deals out of 28,345 listings starting at $2,500
Used Pontiac Bonneville
3 Great Deals out of 532 listings starting at $1,799
Used Ford Mustang
725 Great Deals out of 44,320 listings starting at $1,500
Used Chevrolet Monte Carlo
16 Great Deals out of 1,434 listings starting at $1,995
Used Pontiac G6
88 Great Deals out of 4,085 listings starting at $850
Used Pontiac Grand Am
3 Great Deals out of 1,135 listings starting at $1,000
Used Pontiac GTO
7 Great Deals out of 479 listings starting at $6,995
Used Chevrolet Malibu
1,146 Great Deals out of 80,893 listings starting at $2,500
Used Nissan Altima
1,271 Great Deals out of 74,945 listings starting at $1,800
Used Honda Accord
1,078 Great Deals out of 66,787 listings starting at $1,000

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
11 Great Deals out of 344 listings starting at $1,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.