Oil pressure

Asked by Jurquizo92 Dec 23, 2016 at 10:03 AM about the 2007 Chevrolet Avalanche LS RWD

Question type: Maintenance & Repair

My oil gauge sits at zero then will fluctuate to 80
randomly. I've checked my oil levels and there is no
noises in the engine or over heat. Any ideas of
what it could be? I also don't get any signal of low
oil.

2 Answers

189,445

It possible the gauge in not working. See if you can hook up an external oil pressure gauge to verify you have oil pressure. If its still the same you may want to check your oil pump and or screen it may be clogged with slug.

2 people found this helpful.
159,075

On some of these vehicles there is a screen under the oil pressure sender. Remove the sender and look for a small screen. Clean the screen and while you have it apart install a new sender. I recommend buying the sender from a Chevrolet dealer. There is also a screen on the oil pump pickup pipe inside the oil pan, but I think the problem is more likely the sender, sender screen (if equipped) or the oil pressure gauge and or wiring. If the screen inside the oil pan were to plug you would hear clattering at the lifters when they were collapsing due to lack of oil. Do some reading at the link..http://www.gm- trucks.com/forums/topic/169782-attention-anyone-with-oil- pressure-issues/

3 people found this helpful.

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