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What causes the Check Oil light to come on and the oil pressure to drop when the engine warms up on a 1993 Pontiac Grand Am?
If the main and/or rod bearings are worn, the oil pressure can't be maintained after the oil warms up and thins out. You might be able to get a little more life out of the engine by switching to a heavier weight engine oil.
It is possible also that just the oil pump has worn and can't produce enough pressure at idle. Very often, though, if the pump is worn, so are the bearings, and vice-versa.
What else can I help you with?
What causes Low oil pressure on a 92 Pontiac Bonneville ssei?
Pontiac oil pressure can be tricky! Check with your mechanic first but from my experience with my Pontiac use 10w-40 oil in the winter and 20w-50 in the summer. That has produced better pressure in mine.
Pontiac G6 has check engine light with a wrench?
pontiac g6 check engine light car with wrench
What causes a check engine light in cold weather to turn on for a Pontiac vibe?
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
What causes all dash lights to come on and engine to misfire on a 1999 Pontiac sunfire 2.2L engine?
You could be having a problem with your spark plugs and your dashboard is alerting you. You should have a mechanic check it out.
Can a bad fuel pressure regulator cause the check engine light to come on?
That would one of hundreds of possible causes.
Why does the check engine light flash on a 2003 Pontiac Sunfire?
If a check engine light is flashing that means an engine cylinder misfire has been detected
Why check engine light came on after changing brakes on Pontiac vibe?
Check the brake fluid...
What is the check engine code P0442 for the Pontiac Sunfire?
P0442 Code indicates Evaporative Emission System Leak detected (small leak). What are the causes? What components need to be repaired
What causes the check engine light to stay on in a 2002 Pontiac Montana?
Good Chance this is caused by a faulty O2 Sensor. I had the engine light stuck on in my 2002 Montana and replaced rear O2 sensor and it turned it off.
Causes of check engine light 1981 Corvette?
Causes for the check engine light to come on in a 1981 Chevy Corvette include overheating, low oil pressure, and a bad alternator. Because this car is not equipped with a computer, it has limited self diagnostic abilities.
What are some causes of chugging and hesitating in a 2001 integra GSR?
Chugging and hesitating can be caused by several problems with the Integra. Check for proper fuel pressure, as well as proper engine timing. Check the computer for any engine codes.
How do you check fuel pressure on 1998 Pontiac Transport?
To check the fuel pressure on a 1998 Pontiac Transport, you'll need a fuel pressure gauge. First, locate the fuel pressure test port on the fuel rail, then remove the cap from the port. Attach the gauge securely and turn the ignition to the "ON" position without starting the engine to read the pressure. The normal fuel pressure range for this vehicle is typically between 40-47 psi; if it's outside this range, further diagnosis may be needed.
