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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. oil pump drive

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: Slight whining noise when changing up gears at higher revs or going up hill

The key diagnostic, which you have artfully captured, is "when the clutch is pressed". This narrows the diagnosis to either a failing clutch throwout bearing, or failing clutch pilot bearing. Both of these should have been replaced when the clutch...

Q: oil pressure drops,replaced oil pump, ran for a 2 months, and again pressure drops after afew minutes.

Engine oil pressure may go lower after an engine gets warm. You should have the oil pressure checked with a gauge tester to verify the oil pressure is within specification. If it falls to below specification, then you should replace...

Q: Blowing cold air, overheating. Thermostat is new.

You either have a bad water pump impeller is worn down and not pumping fluid or the radiator is clogged. I would recommend having the engine checked for a blown head gasket checking to see of combustion gas is getting...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...