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I'm getting codes p0403 and p0404. I replaced the egr valve
I'm getting codes p0403 and p0404. I replaced the egr valve and it runs fine for a few minutes then it stalls out. When I try to restart it it runs really ruff and then stalls again … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
24,547 satisfied customers
Code p 300 changed everything still runs high cant drive on
code p 300 changed everything still runs high cant drive on highway leaking gas … read more
Ivan Alvarez
Ivan Alvarez
Automotive Technician
246 satisfied customers
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
David Craig
David Craig
OWNER/MECHANIC
Associates
9,418 satisfied customers
My 02 Grand Prix is idling rough. I had the catalytic
My 02 Grand Prix is idling rough. I had the catalytic converter replaced a few years ago and I just put a new mass air flow sensor on. The check engine light is on… read more
Roy
Roy
shop foreman
Associate Degree
5,251 satisfied customers
Got a 2003 Pontiac grand prix se 3.1 threw a code po404 car
got a 2003 Pontiac grand prix se 3.1 threw a code po404 car wont start. new egr valve fuel pump mass air flow sensor intake gasket changed... car idled horribly then just wouldn't start… read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,678 satisfied customers
Pontiac Grand Prix GT: I have a 2005 Pontiac Grand Prix GT
I have a 2005 Pontiac Grand Prix GT with V6 3.8 liter engine. My car has 92,000 miles on it. About two days ago I could feel, what could only be described as, a hesitation when accelerating. When I'm … read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
21,020 satisfied customers
2000 pontiac grand prix: it has hesitation..accelerating..map sensor
I have a 2000 pontiac grand prix, it has hesitation only sometimes when accelerating. No codes come up as having a problem, I have just recently replaced the map sensor, but the problem is prob. a bit… read more
Ivan
Ivan
Automotive Instructor
Bachelor's Degree
4,857 satisfied customers
Grand Prix: Lately at hiway speed (100-110 km/h..revs..throttle
I have an 02 Grand Prix. Lately at hiway speed (100-110 km/h) when I try to pass another vehicle the car will shift down in gear, the revs will come up but car remains at the same speed. If I let off … read more
Dave Nova
Dave Nova
Pontiac Technician
Associate Degree
2,014 satisfied customers
2000 Pontiac Montana: accelerate..new spark plugs, wires, fuel filter
I have a 2000 Pontiac Montana (144,000 miles) that hesitates (jerks) when starting out slowly, and has no power when trying to accelerate at 40-60 mph' I had new spark plugs, wires, fuel filter, etc i… read more
Tim West
Tim West
Service Manager
Computer/ Automotive certifications
16 satisfied customers
2000 Pontiac Grand prix: stalling..driving down..clogged air filter
I have a 2000 Pontiac Grand Prix GT. Recently it has been stalling while just driving down the road, no sputter, just straight dead. I am told that I need to replace both O2 sensors but have read that… read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,678 satisfied customers
Pontiac Grand Prix GT: 3.8L V-6..upstream o2 sensor was replaced 20
I have a Pontiac Grand Prix GT, 3.8L V-6, with 120,000 miles on it. I got PO131 and PO137 simultaneously. The upstream O2 sensor was replaced 20,000 miles ago at 100,000. The downstream O2 sensor was … read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
21,020 satisfied customers
99 Pontiac Grand Prix Se: the Mass Air Flow Sensor..V6..air filter
Where is the Mass Air Flow Sensor located in a '99 Pontiac Grand Prix Se 3.8L V6/ Thank you. I thought it was located close to the air filter.… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
21,400 satisfied customers
I have a 2001 Grand prix gt, It has a super charger, as far
I have a 2001 Grand prix gt, It has a super charger, as far as I know someone ordered it with it. The problem I'm having is, when I go to step on it, seems like car cuts out when I step on it really f… read more
Tim West
Tim West
Service Manager
Computer/ Automotive certifications
16 satisfied customers
2003 pontiac grand prix gt: power loss then check engine light came
2003 pontiac grand prix gt 3.8L hesitates upon acceleration, loses power, upon letting off gas, sputters and eventually accelerates. first noticed when attempting to pass a vehicle, acceleratied and f… read more
Ironmike
Ironmike
ASE Master ,Ford Certified Master Tech
Vocational, Technical or Trade Scho
3,475 satisfied customers
99 pontiac: idles really bad but off idle is good..map senson hose
i have a 99 pontiac g/a 2.4 dohc.. idles really bad but off idle is good. map senson hose was rotten and i replaced it would a bad map make it idle bad… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
19,914 satisfied customers
grand prix gt: tps, egr, 02 sensor, any chance..shifting problem
hi everyone. 2003 grand prix gt 3.8 hesitations, sometimes takes time to shift, codes were tps, egr, 02 sensor, any chance the shifting problem could be related to the tps sencor… read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,678 satisfied customers
rotor..o.k idles..push on gas ,pops louder..timing..control module
constant backfiring at carb checked plugs ,wires,cap,rotor,ignition module, check for vacuum leaks all o.k idles o.k,but backfires,push on gas ,pops louder. has computer the code im gettin is 42 that … read more
jazzmaster
jazzmaster
LEAD AUTO TECH
Vocational, Technical or Trade Scho
2,873 satisfied customers
Grand prix gt: runs great..car runs..PCM..plugs, wires, fuel filter
Have a 2000 pont. grand prix gt series II 3800 127,000 miles runs great in warm weather/ gets cold out and car runs really rough, hard starts, floods out, black smoke out tail. Has new PCM, crank sens… read more
ZZDaryl
ZZDaryl
Lead Auto Tech
Some college and advanced training
11,483 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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Don - Mo Lurch

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John

John

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

Chris (aka- Moose)

Chris (aka- Moose)

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16 years of experience

car tech

car tech

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446 satisfied customers

25 years master tech and shop owner

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