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Car became hard to start and smelled of gas. cracked fuel
car became hard to start and smelled of gas. cracked fuel line, replaced fuel pump and cracked emissions line. this corrected the problem. however, after the second tank of gas the car almost immediat… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,929 satisfied customers
Backfireing through the carb new carb manually adjusted
backfireing through the carb new carb manually adjusted valves checked firing order reset timing ? … read more
Gary
Gary
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Vocational, Technical or Trade Scho
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My Trans Am dies out while I drive it around but while it's
My Trans Am dies out while I drive it around but while it's in park it does not die out. I replaced the carb, distributor cap ,gave it a good tune up and change the fuel filter! My next step is to rep… read more
jazzmaster
jazzmaster
LEAD AUTO TECH
Vocational, Technical or Trade Scho
2,324 satisfied customers
Pontiac Grand Am GT: How do I remove and check the ignition
How do I remove and check the ignition coil on my 2004 Pontiac Grand AM? The car does not start regularly. Some times taking 5 to 10 cranking tries to start - some times more. Some times it will start… read more
mwymer
mwymer
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Pontiac Grand AM SE: I have a 2001 Pontiac Grand AM SE, my
I have a 2001 Pontiac Grand AM SE, my question is had to valve work, put it all back to work put it all back together the way it was supposed to be done. I tried to start it, it wants to backfire thro… read more
lightsout22
lightsout22
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i have a 2003 grand prix 3.1 liter that runs good until it
i have a 2003 grand prix 3.1 liter that runs good until it rains and then it goes crazy, backfires, boggs down and wont accelerate. Any common problems that cause this?… read more
autodoc_2000
autodoc_2000
Automotive Technician/Asst Service Manag
Vocational, Technical or Trade Scho
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Raining..idled..accelerating..etc. it had a really bad mis/backfire
Drove car wed. evening after it had been raining. Car idled fine and it seemed ok when driving at a consistent speed, but when accelerating from a stop or passing etc. it had a really bad mis/backfire… read more
Dan
Dan
High School or GED
2,257 satisfied customers
1993 Pontiac firebird: trans..new coil and ignition module
1993 Pontiac firebird transam 5.7 liter engine the engine started backfiring badly and then cleared up for a while some days later began backfiring again then quit altogether. There is no spark at plu… read more
Dave Nova
Dave Nova
Pontiac Technician
Associate Degree
2,014 satisfied customers
Fiero: cyl..engine just spit, grunted, and backfired and then stopped
I have an 86 4 cyl 5 speed Fiero. While driving, the engine just spit, grunted, and backfired and then stopped. It would not start again. ? is timing gear, ignition module, or ? The head was redone 10… read more
Dave Nova
Dave Nova
Pontiac Technician
Associate Degree
2,014 satisfied customers
91 firebird: intake have checked MAP,tps..injector wire enjine
have 91 firebird t/aruns but when given gas will backfire-intake have checked MAP,tps, have 42# XXXXX changed compuiter. when i remove a injector wire enjine will run better but still not get over 3,0… read more
ASEMaster35yrs
ASEMaster35yrs
Vocational, Technical or Trade Scho
2,061 satisfied customers
2000 Pontiac Firebird: cyl..backfiring..Codes come..miss
2000 Pontiac Firebird, 6 cyl. Am having backfiring problems. Codes come up as unspecified miss, no particular cylindar identified. Thought I got some bad gas but have run three full tanks of Chevron w… read more
car tech
car tech
ASE Certified Technician
High School or GED
446 satisfied customers
1996 pontiac: trans..rotor..new starter,new battery, put..wont start
i have a 1996 pontiac transam with the ls-1 motor ,was getting no spark from cap ,so i put a new coil,a new cap and rotor,new starter,new battery, put on computer, showing no codes but still wont star… read more
Mad Mike
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Vocational, Technical or Trade Scho
255 satisfied customers
97 pontiac: Car started up just fine drove..car it cranks..trans
Car started up just fine drove down the road all of a sudden backfired and would not restart. Every time I try to start the car it cranks and then backfires definitely getting fuel from what I can tel… read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
8,114 satisfied customers
1990 Pontiac Grand Am: the plug wires go on the coil (firing order)
Where do the plug wires go on the coil (firing order) for a 1990 Pontiac Grand Am with a 2.5L engine… read more
Ron Z.
Ron Z.
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Vocational, Technical or Trade Scho
778 satisfied customers
99 pontiac grand am gt. hard to accelerate when cold.. i
99 pontiac grand am gt. hard to accelerate when cold.. i have replace the spark plugs, wires and coils the problem continues..… read more
BigBob
BigBob
Service Manager
High School or GED
4,792 satisfied customers
2002 pontiac sunfire: 3500 rpms and will not accelerate..70 mph
my 2002 pontiac sunfire is backfireing at 3500 rpms and will not accelerate quickly nor will it go past 70 mph.… read more
car tech
car tech
ASE Certified Technician
High School or GED
446 satisfied customers
Pontiac Firebird: accelerator..rough idle..6 spark plugs and wires
1999 3.8l Pontiac Firebird- I am experiencing the following problems with my car: Car hard to start when hot but starts great when cold, backfiring when letting off the accelerator, bad gas mileage, r… read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
3,392 satisfied customers
2001 grand am: cyl..wont work..module but still the same problem
2001 grand am 4 cyl 4 door. first 3 settings wont work on the ac/heater. change the module but still the same problem 4 and 5 work great would like the other 3 to work to that i am not melting all the… read more
Mr_Wrench
Mr_Wrench
GM auto Tech.
Vocational, Technical or Trade Scho
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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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