Erratic oil pressure
Thread Starter
Racer
Joined: Feb 2011
Posts: 305
Likes: 7
Erratic oil pressure
Hello, I Have a 2015 Stingray that when you start up the oil pressure is at 80. After running for a while it will start to go down to closer to 40. Engine sounds OK no temperature problem, oil or coolant.
Thank you
Thank you
Burning Brakes
Joined: Sep 2022
Posts: 1,202
Likes: 569
From: MSP
yep, this is how oil pressure works. hotter oil is thinner, meaning less pressure for a given pump speed, which is tied to your RPMs. there is a ceiling of pressure determined by the relief valve on your oil pump -- not sure what the exact number is for the c7, but most cars generally have an 80 to 100 psi relief.
Melting Slicks
Joined: Feb 2018
Posts: 2,145
Likes: 1,026
From: North Texas
80 sounds high.
You may be in relief area of the filter.
I'd look further into this.
My 17 when started cold is around 40 and drops to around 30 - 35 when hot.
These are all at idle PSI.
You may be in relief area of the filter.
I'd look further into this.
My 17 when started cold is around 40 and drops to around 30 - 35 when hot.
These are all at idle PSI.
Le Mans Master
Joined: Mar 2010
Posts: 7,049
Likes: 945
From: DFW TX
drive the car.
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Thread Starter
Racer
Joined: Feb 2011
Posts: 305
Likes: 7
Hi, Remember it doesn't stay 80 psi just till getting run awhile. I do appreciate all the input. When talking to my service they said it could be oil pressure sensor
or oil pump or trouble with the ECU. I probably will take it in and drop my pants and bend over or trade it for a newer car. I have been stuck on the side of
the road with a C6 and do not want to be in that place again waiting for a tow while cars wiz by at 70 plus. Thanks people
or oil pump or trouble with the ECU. I probably will take it in and drop my pants and bend over or trade it for a newer car. I have been stuck on the side of
the road with a C6 and do not want to be in that place again waiting for a tow while cars wiz by at 70 plus. Thanks people
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,476
From: South Florida
Also, I assume you have your dash set to imperial and not metric?