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Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 17147
Experience:  15 years GM master tech
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I have a k3500 4x4 Duramax with 211,000 mile. The oil

Customer Question

I have a k3500 4x4 Duramax with 211,000 mile. The oil pressure sometimes drops to zero while driving. The engine seams fine. When it happens I stop and turn off motor. Wait a couple of minutes and start up and it fine for a while- intermediate.
I have changeded the oil pressure sending unit with a new OEM and it had no effect
Submitted: 1 year ago.
Category: Chevy
Expert:  Gary replied 1 year ago.

when it drops to 0 there are no abnormal engine noises at all ?

any access to a mechanical oil pressure gauge to connect it to where the oil sensor goes and monitor the oil pressure with the mechanical gauge and see if that will ever show the engine oil pressure read 0 PSI of oil pressure

Customer: replied 1 year ago.
There is no external or secondary noise. I do not have a secondary oil pressure gauge I can hook up while the truck is running
Expert:  Gary replied 1 year ago.

ok see what that reads for oil pressure