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Rpms bounce from 1000 to 1500 when i let off the gas pedal,
rpms bounce from 1000 to 1500 when i let off the gas pedal … read more
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1994 3800 46,000 miles when going to stop and slow down the engine stalls starts right up after it stalls does this stalling once in a while sometimes not for days does not mater if its cold or warmed… read more
Ron
Ron
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Vocational, Technical or Trade Scho
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Pete
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Amedee
Amedee
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Pontiac: Hi Guys,I was given a "99 Pontiac Bonnaville 3.8 K
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Dave Nova
Dave Nova
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1999 Bonneville: it runs great, but after it heats..die..scanner
I have a 1999 Bonneville, when it's first started, it runs great, but after it heats up a bit, anytime I decellerate enough, like going around a curve, the voltage drops and it will die if I don't kee… read more
GM Tech (Cam)
GM Tech (Cam)
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Vocational, Technical or Trade Scho
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1999 Bonneville: alternator bracket..intake manifold..exhaust..coolant
Working on a 1999 Bonneville 3.8 (K), fixed a small leak where bypass tube from alternator bracket goes into lower intake manifold, replaced bypass, no leaks. Started vehicle and idled fine, about two… read more
snapontech
snapontech
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1994 Pontiac: engine runs..after 4-5 mins there is black smoke coming
Hi, I have a 1994 Pontiac Transport 3.8 L, when I start the car it's ok but when the engine runs after 4-5 mins there is black smoke coming out from the tail pipe and the engine stalls. I changed the … read more
Amedee
Amedee
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Vocational, Technical or Trade Scho
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94 pontiac Bonneville: coils..OBD..check engine light comes..runs good
I have a 94 pontiac Bonneville. 3.8 all 3 coils between 0.5 and 0.9 I replaced ignition module it has a 16 pin OBD 2 no codes can be pulled check engine light comes on start car goes out .car runs goo… read more
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Jerry
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pontiac grand prix: my 06..v6..hills..cruise control and car goes
I'm getting a random missfire code on my 06 pontiac grand prix 3.8 v6. I only have a problem when going up hills, esspecially if I'm in cruise control and car goes into passing gear. I get a flashing … read more
BOBBYSS
BOBBYSS
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hard start /starts/surges/stalls if let off gas came up with trouble code p0103 massair flow=replaced mass air flow/air filter/idle contol valve and ign module.starts runs ok cold let sit 1/2 hour go … read more
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Pete
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Brad
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2001 grand prix gt: 60,000 miles..during acceleration..cruising speed
I have a 2001 grand prix gt. The car just hit 60,000 miles. Over the past few months it has started cutting out during acceleration and when the vehicle is at a constant cruising speed. This happens e… read more
BOBBYSS
BOBBYSS
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2000 pontiac grand PRIX: TURBO..starts back..mas air flow..gas tank
2000 PONTIC GRAND PRIX 3.8 NO-TURBO stalls out a idle,stalls out when giving gas or letting off gas,most of the time it starts back up but somtimes it starts harder. i have changed fuel pump,mas air f… read more
GM Tech (Cam)
GM Tech (Cam)
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Vocational, Technical or Trade Scho
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My car wont stay running.. as soon as i take my foot..stalls..mass
my car wont stay running.. as soon as i take my foot off the gas it stalls.. could it be the mass flo sensor or something else??… read more
Greg A
Greg A
Bachelor's Degree
8,972 satisfied customers
I have a 2000 ssei supercharged Bonneville and sometimes at
I have a 2000 ssei supercharged Bonneville and sometimes at startup, cold and warmed up, it idles real rough and erratic. But it will then start up and idle great and run down the road with no misses … 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

1,463 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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