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I have a 2002 Pontiac Grand am with the 3.4. When cold
I have a 2002 Pontiac Grand am with the 3.4. When cold acceleration is fine. When it warms up, it stumbles and bucks until it reaches 3000rpm. Then pulls fine until the shift and drops below 3000rpm. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,872 satisfied customers
I have a 1997 Pontiac Grand Prix GTP and after changing my
I have a 1997 Pontiac Grand Prix GTP and after changing my mass air flow sensor ,throttle position sensor ,idle air control sensor ,and ignition coils my car wont start. Can somebody tell me what's go… read more
Reggie Whiddon
Reggie Whiddon
Shop Foreman
Vocational, Technical or Trade School
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2004 grand am fuel pump is good fuel presser is good at the
2004 grand am fuel pump is good fuel presser is good at the relief vale to fuel into the throttle body as i can get the car to almost start with starting fluid… read more
jazzmaster
jazzmaster
LEAD AUTO TECH
Vocational, Technical or Trade Scho
2,323 satisfied customers
Pontiac Bonneville: On my Pontiac boneville with A 3800 it
On my Pontiac boneville with A 3800 it will start and die, we have changed the fuel pump and also the mass air flow sensor and the fuel filter any suggestions where to go next… read more
jazzmaster
jazzmaster
LEAD AUTO TECH
Vocational, Technical or Trade Scho
2,323 satisfied customers
02 Grand Prix w/3800 "k" motor.Stalls and no-start at times.
02 Grand Prix w/3800 "k" motor.Stalls and no-start at times. I know it looses injector pulse. Has new MAF,ECT,CMP,CKP&ECM. Can drive 20 miles without problem than next time car wont make it 1 mile. If… read more
Gary
Gary
Pontiac Technician
Vocational, Technical or Trade Scho
1,463 satisfied customers
what would make my car buck or surge at certain levels
my car surges at various speeds usually under a load, sometimes it does not do it or do it as bad. I have had the fuel pump checked ok, fuel filter changed, fuel regulator under the hood changed, I ha… read more
Dan
Dan
High School or GED
2,257 satisfied customers
89 granprix 2.8 5 spd standard. It starts hard..idles good..it stalls
I have an 89 granprix 2.8 5 spd standard. It starts hard. When it does start it idles good but as soon as you step on gas it stalls. I have replaced fuel pump, fuel filter, fuel regulator. temp sensor… read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
19,512 satisfied customers
grand prix: problem with my 2000 pont..stalling..run fine..engine rpm
been having a problem with my 2000 pont. grand prix. started poorly running stalling using lots of fuel,sometimes start and run fine outher times only run if i keep engine rpm up on high rpm, some tim… read more
Dave Nova
Dave Nova
Pontiac Technician
19,452 satisfied customers
95 BONNEVILLE: that is getting gas..check valve..wont start...any
hello I have a 95 BONNEVILLE that is getting gas to the check valve but not into the motor.it wont start.any help is apreciated.… read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
19,512 satisfied customers
2002 pontiac firebird: V6..my car runs..highway..1100 bucks..cylinders
i have a 2002 pontiac firebird V6 (3.8L i think) my car runs as normal (slightly rough idle) but will die at random while driving, sometimes it will restart other times it has to sit for hours before … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
23,904 satisfied customers
Grand am: starts good..engine temp..restart..starting fluid
Hi, 93 pont grand am, 2.3 ohc. starts good cold, when engine temp is 150 and above will not restart, will start with starting fluid. no inj pulse while cranking… read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
19,512 satisfied customers
probe: no rpm on scan tool replased cks and icm i can spray intake
working on 1994 pont. no rpm on scan tool replased cks and icm i can spray intake and it will run . no inj pulse also i can probe purp/wht wire and get inj. to pulse so ecm ok ??… read more
JHoop
JHoop
Owner,Technician
High School or GED
5,425 satisfied customers
97 Bonneville: it warms..p0305 (Misfire cylinder..Solenoid
I have a 97 Bonneville that is running bad. It seems to run ok when I first start it but after it warms up it starts missing at normal diving speed and at idle, under full throttle it runs good. I hav… read more
John
John
GM FACTORY CERTIFIED TECHNICIAN
2 YEARS COLLEGE
514 satisfied customers
1993 bonneville: fuel pressure regulator..a 3800 tuned port injection
Would you be able to tell me if a fuel pressure regulator from my 1993 bonneville parts car will fit my 95 bonneville.The 93 is a 3800 tuned port injection with the regulator on the back side of engin… read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
8,027 satisfied customers
95 Pontiac Firebird: it is missing at idle and under a load
95 Pontiac Firebird, 3.4L. Down on power, feels as though it is missing at idle and under a load. Car failed smog for defective converter and EGR valve. Those were replaced and the muffler seemed part… read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
19,512 satisfied customers
Firebird: v6..injector pulse crank signal and check engine light
1999 pont firebird v6 no spark do have injector pulse crank signal and check engine light but no codes… read more
John
John
GM FACTORY CERTIFIED TECHNICIAN
2 YEARS COLLEGE
514 satisfied customers
1995 Pontiac Bonneville: It ran great..next morning it would not start
I have a 1995 Pontiac Bonneville SSE. It ran great when i shut it off but the next morning it would not start. it turns over but that s it. I have checked the fuel pressure (50 lbs), all fuses. It app… read more
Wicked Wrench
Wicked Wrench
Automotive Technology Instructor
Associate Degree
458 satisfied customers
Grand am: runs fine..injectors i tryed new coils coil tower..module
i have 1996 pont grand am the fuel trim reads 0 and run fine then the fuel trim starts going - then runs rough and starts miss firing then it zero out and runs fine . ive put new o2s map sensor. injec… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
29,925 satisfied customers
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Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

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GM Grand Master Technician 2007. 14 years experience.

Dave Nova

Dave Nova

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Gary

Gary

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Ron Z.

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John

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car tech

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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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