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Pontiac Repair/1996 Pontiac grand Prix 3100

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Question
My 1996 Grand Prix Pontiac has very little get up and go going up any incline. I have changed the TPS sensor for the temperature control sensor on it and it keeps still sputtering as I go up a hill. Do you have any idea what it could be? It has had new spark plugs and coil pack and wires put on it about 6 months ago

Answer
Hi Tina.

is there any service engine soon light coming on and or flashing? if so stop by a big box auto parts store and get the car scanned for codes.  if there is a code set it could pint the finger towards the issue. if it's spitting and sputtering like it's not running on all 6 cylinders I would suspect a bad set of plug wires or a cracked spark plug? when was the fuel filter last changed? with out seeing it it's hard to say but seems like you covered the basics. if it just misfires under a load I would suspect a plug or wire. just because you just changed them doesn't mean you don'r have a bad set of wires or a bad spark plug/

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Todd Puccio

Expertise

General auto repair,electrical issues,driveability issues,anti-lock brakes,SIR systems,HVAC,engine performance,Gm specific. I have worked at my current dealership since the 1990 model year anything much older than that I have limited exposure to. I do not have very much transmission experience so those question you may want to ask of another expert. When you send me a question let me know the exact make/model/engine and year for the car or suv you have it makes it easier to answer the questions that way. If your happy with the answer I gave you please feel free to Donate. This is a free service to you and I am not compensated at all by this web site. I have 22 years of experience to share with you and my knowledge wasn't free to me. I had to pay for my education.

Experience

Experience in the area: I have been a technician in GM dealerships for over 22 years and I am a ASE master technician. I work at a Buick and GMC truck store Previously I worked at a Pontiac GMC store for 18 years. I Served a a lead technician when dealership was on a team system. I just recently moved to a Buick,Hummer,Saab Store when my franchise was purchased by this dealership. Organizations: ASE master technician

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ASE

Education/Credentials
Education/Credentials:High school diploma,2 year vocational school degree 2 year college degree. Associates degree in applied sciences (auto technology)Awards and Honors: GMC master technician

Awards and Honors
Master GMC truck technician Master ASE technician in 9 categories

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