When the engine first starts up the gauge reads over 40, it will drop slightly when you start to drive. When you have to stop at traffic light the gauge slowly drops toward red zone and pressure rises again when you accelerate.
Pontiac Q&AAsk Your Question
1996 Pontiac Bonneville Question: Oil Pressure gauge flucuates from over 40 to close to red zone when idling
Verified customer reviews for auto repair shops near you