I own a 5.3 2007 Avalanche. It has 160k miles. When it is first started it holds approx. 40 pounds of oil pressure, once it warms up, when idling it drops to 0 and the bell goes off. If I give it a li

Asked by Jun 28, 2017 at 03:37 PM about the 2007 Chevrolet Avalanche LTZ 4WD

Question type: Maintenance & Repair

I own a 5.3 2007 Avalanche. It has 160k miles. When it is first started it holds approx. 40 pounds of oil pressure, once it warms up, when idling it drops to 0 and the bell goes off. If I give it a little gas, it stops until I let off the gas. There is no knock, no click, nothing.  What could my problem be?

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