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rpmdiag, Tech and Instructor
Category: Chevy
Satisfied Customers: 7364
Experience:  Since 1975
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My cars oil pressure drops to 0 when it's warm. Bring idle

Customer Question

My cars oil pressure drops to 0 when it's warm. Bring idle up pressure goes up.
JA: How old is your oil pump? Has the check engine light come on?
Customer: Check engine light comes on until i give it more rims.
JA: What is the model/year of your Chevy?
Customer: 2002 envoy.
JA: Are you fixing your Envoy yourself? What have you tried so far?
Customer: Nothing. Just started a week ago.
JA: Anything else you want the mechanic to know before I connect you?
Customer: no.
Submitted: 5 months ago.
Category: Chevy
Expert:  rpmdiag replied 5 months ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 5 months ago.

You need to check the oil pressure with a gauge.

You also need to check to see if you have a lot of sludge in the oil.

If you have a sludge build up, you can flush the motor oil with chemicals, but you need to check the PCV system too for blockage.

Thanks, Ron

Expert:  rpmdiag replied 5 months ago.

If you are satisfied with my answer, I would greatly appreciate a 5
star rating now and I will still assist you after you have rated me
too if another question pops up. I don’t get credit for helping you
until you rate me.
Thanks again, Ron