AboutTodd Puccio Expertise General auto repair,electical issues,driveability issues,anti-lock brakes,SIR systems,HVAC,engine performance,Gm spacific. I have worked at my current dealseship 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.
Experience Experience in the area:I have been employed by the same Gm dealer for 18 years and and a ASE master technician. I work at a Pontiac and GMC truck store. Served a a lead technician when dealership was on a team system.
I just recently moved to a Buick,Hummer,Saab Store when my franschise was purchased by this dealership.
Organazations: ASE master techncian
Education/Credentials:High school diploma,2 year vocational school degree
2 year college degree. Associates degree in applied scineces (auto technology)Awards and Honors: GMC master techncian
Question Hi, I own a 1999 grand prix gt with the 3800 series II engine non supercharged. When i accelerate i get a reving up and down in 3rd and fourth gear. If i have steady acceleration it will keep reving up and down but when i take my foot off the gas or put more into it it will stop. I do have an aftermarket air intake on the vehicle. Do you know where the problem might lie?
Answer Hi Scott:
You may have an issue with the transmission in 3 and 4'th gears. if the engine doesn'r act up in 1 or 2 gears the engine goes through the same rpm band in all the gears and if it only acts up in the 2 higher gears I think I'd look at a trasnmission concern here. take a llok at the fluid make sure it full and is not black or smells burnt If so That would be a good indication of a transmission issue with thie car. I don't think the cold air inatke would have much is any effect on this. has any service engine lamp come on?
