Skip the auto shop - Our mechanics make house calls

Q: Oil pressure sensor works erratic

asked by on

we just had our engine rebuild and our oil pressure sensor is going wacko why ??????

My car has 142000 miles.
My car has an automatic transmission.

You will need to check to see if the oil pressure sensor got damaged when all the work was performed. If it is damaged in any way then replace oil pressure sensor. If the pressure sensor is not damaged then you will need to have the oil pressure tested manually to see if the oil pressure is giving an erratic reading causing the pressure output reading to cause the sending unit to no work correct. If the pressure is erratic then you most likely have a defective oil pump pressure control valve and the oil pump should be replaced. If the pressure is steady with manual gauge then replace oil pressure sensor.

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: does the repair include coolant recycling and line drying

Refrigerant cannot be charged to an empty system without first thoroughly evacuating the system, preferably down to 500 microns. Therefore, if you see a price quoted for charging an empty system, of course that includes a proper, professional and complete...

Q: my 1996 Tahoe click every time I turn the key what can b the problem

It's possible that you have a weak battery and/or excessive voltage drop in the starter circuit. Prior to performing diagnostics be sure you have a fully charged battery that passes a load test. Then, confirm that the engine immobilizer system...

Q: car problems

Hello. Noises from beneath the hood can be caused by many things. I would try to determine from what area of the engine, component, or accessory the noise may be coming from and go from there. Vehicle cooling systems don't...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...