Skip the auto shop - Our mechanics make house calls

Q: oil pump drive

asked by on

Recently I changed my oil and filter...but I didn't have time to finish so I just left it like that with no filter and oil and just let it drain till about 8hours later when I returned to re-install a new filter that I filled with oil first before installing and plugging the oil pan and filling it up but I think I messed up my oil pump by waiting too long to finish this job as now when i start my car there is some tapping in the upper engine area as if you there is not enough oil reaching the upper engine area....if I were to remove the oil pump drive and attach an extension to the shaft and turn with a drill to prime the pump do you think this will restore the oil pumps function as a last resort before replacing the pump?

My car has 3000 miles.

Hello there, thank you for asking about your 1993 Pontiac Grand Prix. The pump is self priming. If the red Oil Pressure Warning Light is not on, there is sufficient oil pressure. When engines are assembled, the oiling system is primed under pressure using an external pressurized vessel, but only to prevent dry starts (bearing damage), not to "fill" the pump with oil. If you suspect low oil pressure, the initial test is to remove the sending unit and install a pressure gauge. Check pressure throughout engine RPM operating range. For your vehicle, oil pressure should be roughly in the range of 15 PSI to 40 PSI but the FSM should be checked for the exact range. If the warning light is not on (be sure to check the warning light itself to be sure it functions) unfortunately the present noise you are hearing is merely coincidental to the oil change. If you would like help, YourMechanic can diagnose the engine noise for you and let you know the likely source and possible repair options. Best of luck to you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Mazda - Clacking noise

This may be caused by a number of things ranging from broken internal components such as valves, rocker arms, or potentially even a timing chain that is loose. Without further detail and physically inspecting the car, this may be difficult...

Q: How much for replacement of rear differential pump? 2006 Ford Freestyle

Hi there - unfortunately, this is not a service YourMechanic.com offers at this time. Thanks for thinking of us though!

Q: I have a check engine light coming on and off. Scanned code is p0013. CMP solenoid fault. 2008 Pontiac G6

Hello - the P0013 (camshaft position actuator solenoid control circuit) code you have could be caused by several issues. This could be an electrical issue with the wiring to that solenoid itself. There may also be a problem with a...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.