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Dan, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1668
Experience:  Auto Technician
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We have a 2009 Chevy Express 6.6L that the low oil pressure

Customer Question

We have a 2009 Chevy Express 6.6L that the low oil pressure message comes on when its hot and comes on when it returns to idle. We have replaced the oil level sensor as well as the oil pressure switch. It has never set a code and when you hook a scan tool up to it and drive it, the live data stream never indicates a loss of oil pressure when the message actually shows up
JA: How old is your oil pump? Has the check engine light come on?
Customer: The oil pump is original from 2009. The check engine light has never come on regarding this problem
JA: What is the model of your '09 Chevy?
Customer: Express
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes. See first message
JA: Anything else you think the mechanic should know?
Customer: No
Submitted: 10 months ago.
Category: Chevy
Expert:  Dan replied 10 months ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.

Expert:  Dan replied 10 months ago.

You need to hook up a mechanical oil pressure gauge to verify you do not have pressure problems. It could be electrical but I would verify oil pressure at operating temp while at idle.

Expert:  Dan replied 10 months ago.

Please reply to this if you need more help and we can continue this conversation. If you are satisfied with my service, please rate at the top of the screen. Rating does not close out your question. Remember, sometimes it is difficult to completely diagnose your vehicle without being there, but I will try to give you the best answer I can. If I am not giving you 5 star service, please let me know what I missed.



Expert:  Dan replied 10 months ago.

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.

I do not get compensated for my time and resources unless you rate me.