Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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Does your vehicle have the 4.8L or the 5.3L engine?
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Ok. As long as there are no knocking or ticking noises coming from the engine, this is most commonly due to a faulty Oil Pressure Sensor. These are common fail items on these vehicle. I would strongly recommend that the 'actual' oil pressure be tested with the use of a pressure testing tool just to confirm no internal engine problems, like a failing oil pump. If the actual oil pressure checks ok, the Oil Pressure Sensor will need to be replaced. It's located on the top, driver's side rear of the engine. To gain the access needed to get a tool on it and remove it unfortunately, will require that the intake manifold first be removed. The sensor itself is roughly $20-$25 and the Labor is just abour 2.5 hours. Please remember to leave a rating using the 'stars' or click 'Accept'. A 5-star rating is much appreciated! Rating or accepting my answer does not cost you extra.
The actual oil pressure reading will need to be taken next.
The pressure sensor will need to be removed and the testing tool installed in it's place. You will need:
The tester tool will need to be installed in place of the pressure sensor. Remove the sensor, install the tester, install the intake.