Pontiac Repair/issues


I have a 95 pontiac bonneville se 3800. My oil gauge is fluctuates while driving I've changed oil level gauge sensor, sending unit, oil changed the car runs and sounds quiet and smoothe but when gauge is low the car shuts off 30min later cranks right uo help me please I really need your expertise hate to buy oil pump and it does the same thing???

Hi Shay:

before you dig into this more get a mechanical guage and out it in the engine where the sensor goes and run it and see what you have for pressure don't trust the one on the dash. If that too is indeed low then you have a mechanical issue more then likely worn out engine bearings mainly cam bearings on a 3800 engine. a oil pump will not fix it if indeed low.
Good luck :-)

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Todd Puccio


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 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


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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