2008 Trailblazer oil pressure guage at zero but driving fine?

Asked by the86ali Apr 19, 2015 at 09:57 AM about the 2008 Chevrolet Trailblazer 3LT 4WD

Question type: Maintenance & Repair

I have a 2008 Chevrolet Trailblazer LTZ 5.3L V8 140,000 km. Two days ago when I
started the car and began driving, I noticed the “Check Gauges” light had come on and
the oil pressure gauge needle was exactly at 0. I immediately stopped my car and shut
down the engine to check the oil level which was absolutely fine. I wasn’t sure what to
do, so I carefully drove to my destination without any problem. There was no engine
power issue or any other noise. There was no engine oil warning light or any message
like “oil pressure low” on the driver information center. Everything seems to be fine
except the “check gauges” light and the oil pressure gauge reading. I have driven more
than 300 km since then. What should I do?

2 Answers
50,765

John answered 9 years ago

For some reason the oil sensors about this time of ownership are failing. They are not expensive. On the top rear left side of the engine is where the sensor is. It will take a 1 1/16 deep socket to remove it and put in a new one.

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