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

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: 1999 Mazda Miata leaking oil

Oil leaks can be tricky. As the vehicle ages, oil can start leaking from multiple places. If it is dripping on the ground it needs addressed right away. Is it engine oil, power steering, or transmission fluid? All can create...

Q: Replace a oil pump

Replacing an oil pump involves dropping down the front sub frame and then removing the oil pan. You will need to support the engine and transmission assembly. The important question here is: why are you replacing the pump? ...

Q: I am trying to do a relearn on a 2000 bonvillie but security light isnt blinking for me to do it

Hi there. If the ignition switch you've used is an aftermarket component and not OEM, it might be causing the communication error. It's also possible that there is an exposed or faulty electrical connection that is causing this problem or...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...