2003 pontiac bonniville has misfir on cycl 2 and poor gase mileage

punkinwv1
0

Asked by punkinwv1 Jan 26, 2013 at 11:00 AM about the 2003 Pontiac Bonneville SLE

Question type: Maintenance & Repair

4 Answers

joef
3,335

When was the last time you had a tune-up? Could be a bad spark plug, faulty injector, or a problem wit one of your ignition coils. It is never a good idea to run a car while it is misfiring. It will cause damage to your exhaust system.

3 out of 3 people think this is helpful.
John Saffrahn
16,105

100% correct, that is why the check engine light is flashing. The only thing not mentioned was low compression on that cylinder. As soon as the misfire is fixed the MPG will go back up.

Mike Darbro
0

Will a misfire show up on the code generator?

John Saffrahn
16,105

yes as long as it has an On Board Diagnostic system.

Your Answer

Add photo

Related Questions

Bonneville
Looking for a Used Bonneville in your area?
CarGurus has 1,060 nationwide Bonneville listings starting at $1,599.
ZIP:

Search Pontiac Bonneville Questions

Pontiac Bonneville Experts

#1 dandyoun
dandyoun
Reputation 190
#2 ticklemedaly
ticklemedaly
Reputation 170
#3 Lars Cats
Lars Cats
Reputation 160
View All

Related Models For Sale

Used Pontiac Grand Prix"
217 Great Deals out of 5,493 listings starting at $1,500
Used Chevrolet Impala"
2,059 Great Deals out of 56,300 listings starting at $995
Used Chevrolet Monte Carlo"
73 Great Deals out of 2,561 listings starting at $1,595
Used Buick LeSabre"
128 Great Deals out of 3,339 listings starting at $1,000
Used Pontiac GTO"
14 Great Deals out of 400 listings starting at $7,900
Used Nissan Maxima"
725 Great Deals out of 20,130 listings starting at $1,000
Used Ford Taurus"
724 Great Deals out of 18,770 listings starting at $833.1
Used Toyota Camry"
2,064 Great Deals out of 72,338 listings starting at $992
Used Honda Accord"
1,598 Great Deals out of 65,600 listings starting at $800
Used Pontiac Grand Am"
62 Great Deals out of 2,568 listings starting at $1,200
Used Cadillac CTS"
574 Great Deals out of 19,861 listings starting at $2,000
Used Cadillac DeVille"
70 Great Deals out of 3,123 listings starting at $1,750

Used Cars For Sale

2005 Pontiac Bonneville SLE For Sale
27 listings starting at $4,495
2004 Pontiac Bonneville SLE For Sale
4 Great Deals out of 39 listings starting at $3,500
2003 Pontiac Bonneville SLE For Sale
45 listings starting at $2,699
2002 Pontiac Bonneville SLE For Sale
5 Great Deals out of 47 listings starting at $2,195