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Its bogging and throwing a misfire code when it starts to
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98 grand prix gt: misfire..the coil pack..drove car..same thing
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Ron Z.
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i have a 98 pontiac grand prix gtp that i just put a hole new top end on, new plugs and wires, and all new vaccum lines. i done all this work because the car run hot and started missfiring. a mechanic… read more
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It still has a big skip in it, i was told the new converter
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I rebuilt the upper end of the motor on my 99 pontiac grand
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my 99 pontiac grand am gt scanes multiple cylinder misfire. has new wires, year old plugs and good used coil packs.… read more
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99 pontiac grand am gt: good coil packs..rebuilt..antifreeze
why does my 99 pontiac grand am gt have multiple cylinder misfire? new wires, 6 month old plugs and good coil packs that were used. i rebuilt the upper rnd due to antifreeze in combustion chamber. ple… read more
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Hello i have a2003 pontiac grand prix 3.1. I put it on the computer and it said it had a misfire in cylinder 1. I gave the car a complete tune up with new plugs and wires. The car is still misfiring. … read more
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Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Pontiac Technician

2,403 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Dave Nova

Dave Nova

Pontiac Technician

2,014 satisfied customers

ASE Master Certification. GM World Class Certification

Gary

Gary

Pontiac Technician

18,051 satisfied customers

15 years GM master tech/15 years ASE master

Ron Z.

Ron Z.

- Pontiac Tech -

778 satisfied customers

18+yrs experience. State Inspector and Pontiac Diagnostics

Don - Mo Lurch

Don - Mo Lurch

Pontiac Mechanic

558 satisfied customers

GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

John

John

GM FACTORY CERTIFIED TECHNICIAN

514 satisfied customers

ASE A1-A8 w/L1 GM master technician.Factory certified/40 years experience

car tech

car tech

ASE Certified Technician

446 satisfied customers

25 years master tech and shop owner

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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