[Trenton]

2013 Cruze 1.8. Have no oil pressure.

New pistons and rings
New bearings
New oil cooler
New oil pump
New check valves
New head gaskets
Having a sucking sound now

Had oil pressure for a couple minutes at startup. Then as it got warmer, the oil pressure dropped. Now it will actually go below 0 because of the vacuum.

[James]

Replace the valve cover if it has the PCV built into it. Sounds like you should have took it to someone who knows what they are doing instead of who ever has been working on it.

[John]

If it was me, I would try a compression test, cuz you need more data and more tests done.

Being I do know that a cold start psi will be 60 to 80 psi, once the engine is warm it’ll fall to 40 psi at 2,000 rpm.

[Tucker]

Sounds like your valve cover with built-in PCV has failed.

[Jaime]

Sounds like you have an issue that is causing pressure to bleed off. What oil pump did you use? Oil and filter changed recently, I assume. It almost sounds like the relief valve is getting stuck open.

[Richard]

Oil pressure doesn’t go into vacuum. Where are you connected to with the gauge?

[Michael]

Engines with normal oil psi at start up that falls off to zero within 3 minutes of cold start is most likely bearing clearances that are too large — once oil becomes hot withing 3 minutes of dead cold it becomes hot & thin as water will lack oil pressure.

[Author]

Posts