Q: Oil pressure sensor....need changed or just dirty

asked by on

I live in western ny and winter roads and salt are terrible. As I ascended a steep grade hill my check engine light illuminated, I had obd check report a code for a bad oil pressure sensor. I then washed the truck in an auto carwash, and to my suprise the light went off and hasn't come back on. Should I change the $80 sensor, or is it possible was juss dirty??

My car has 91000 miles.
My car has an automatic transmission.

You may still want to have the system checked in person for a possible bad sensor or connection to the sensor. After washing, you may have washed away some corrosion on the connector to the sensor. If you have a professional inspect the system, have them check if the connector and sensor are having any type of connection or corrosion problem.

Also, Chevrolet uses the oil pressure on some models to let the computer know if you have enough oil pressure to keep the engine operating normally. Your engine may have a blockage in the oil pressure sender passage that goes to the lifters and may need to be cleaned out. This instance would cause the sensor to not get pressure from the engine due to blocked passages. The manufacturer has a technical bulletin for this issue and the processes to clean out the passages and oil sender if this is indeed the problem. If you would like to have this checked, a mechanic, such as one from YourMechanic, can come to your home or office to inspect your oil system and determine if an oil pressure sensor replacement is needed.

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 pressure sensor....need changed or just dirty

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: Q: Battery died and was jumped, but will not stay running.

Hi There, Generally, when a battery is weak, it order for the alternator to recharge it you may need to run the motor for at least 20-30 minutes without stopping in order to properly recharge the battery. If this is...

Q: What does the immobilizer light mean?

When your engine is turned on, the immobilizer light should briefly turn on. This lets you know that the security system is working; if the immobilizer light does not briefly come on, the system is not functioning properly. If the...

Q: Need to know if my alternator is bad.

Hey there, thank you for asking about your 2005 Chevrolet Silverado 1500. Disconnecting the battery while the vehicle is running can damage the Powertrain Control Module (aka, vehicle "brain" or "engine computer") or other electrical components due to voltage excursions...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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...