'03 Grand Prix.Service engine light is on and when the car idles or goes below 1 RPM it loses power/stalls out. took it to AutoZone for the code. Code says misfire #6. Changed coil pack...still stall

Asked by Dec 12, 2015 at 08:41 PM about the 2003 Pontiac Grand Prix SE

Question type: Maintenance & Repair

2 Answers

37,975

So are you getting spark to the spark plug? And how are the plugs & wires? Another thing to check would be compression. But at normal idle you can have a miss and the engine not stall. You may have more going on to check out,

1 out of 1 people think this is helpful.
56,855

If your Grand Prix has over 100,000 miles on it you're due for a tune up (new spark plugs and spark plug wires). Especially if you don't know for sure that it's ever been tuned up before. When you do the tune up look at the spark plug for cylinder number 6. Is it wet and smell of gasoline? Coolant? Is it oily? You want to be looking at the tip that goes into the engine. Also, pull the oil dipstick. Is there white milky "goop" on the dipstick? If so and you have the 3.1L it's going to be a head gasket. If you have the 3.8L it's going to be the intake manifold gasket. Especially if you're between 90,000 and 120,000 miles. HTH. -Jim

Your Answer

Add photo

Related Questions

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,770
#2 Tom Demyan
Tom Demyan
Reputation 2,520
#3 munron
munron
Reputation 2,010
View All

Related Models For Sale

Used Chevrolet Impala
997 Great Deals out of 36,594 listings starting at $1,800
Used Pontiac Bonneville
3 Great Deals out of 667 listings starting at $2,298
Used Chevrolet Monte Carlo
16 Great Deals out of 1,737 listings starting at $1,695
Used Pontiac Grand Am
1,716 listings starting at $1,995
Used Chevrolet Malibu
1,157 Great Deals out of 80,222 listings starting at $2,495
Used Pontiac GTO
7 Great Deals out of 500 listings starting at $5,900
Used Ford Mustang
718 Great Deals out of 38,848 listings starting at $1,999
Used Chevrolet Camaro
655 Great Deals out of 39,478 listings starting at $3,495
Used Nissan Maxima
499 Great Deals out of 25,223 listings starting at $1,500
Used Chevrolet Tahoe
1,099 Great Deals out of 31,960 listings starting at $1,495
Used Pontiac Firebird
10 Great Deals out of 833 listings starting at $3,800

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
15 Great Deals out of 469 listings starting at $1,995
2007 Pontiac Grand Prix For Sale
523 listings starting at $1,995
2006 Pontiac Grand Prix For Sale
5 Great Deals out of 636 listings starting at $1,550
2005 Pontiac Grand Prix For Sale
7 Great Deals out of 442 listings starting at $1,195