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2008 chevy trailblazer_ltz
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2 Posts
Discussion Starter #1
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?
 

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2005 isuzu ascender
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319 Posts
Could be your oil pressure sensor has gone bad ... on the 5.3 I'm not sure where it is but there are threads about how to test and replace. It's a $30 part or so.
 

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2008 gmc envoy_denali
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13 Posts
See "Low oil Pressure: thread. Same thing happened to me. 2008 Envoy Denali with 5.3 - 83,000 miles. I had the sending unit replaced on the back of the engine a few weeks ago and have not had a problem since (fingers crossed).
 
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