6.0 low oil pressure.

Aidan Grant · February 16, 2020

my 6.0 with 230xxx has low oil pressure but no knocks maybe a little tick though. When i bought the truck it had maybe 5-9psi cold dropping to 0 warm. Thought it may have been a pickup tube oring or oil pump so i went ahead and replaced the pickup tube, o ring, and pump. it now gets 20 cold 7 warm at idle and 0 warm at idle and 20 warm running 1700 rpm. Which is a lot better but still a problem. I am aware the bearings may be shot and need a total rebuild, that is not out of the options. It is not electrical or sensor based issue same psi with a mechanical gauge. However I need to replace my harmonic balancer and take off the timing cover again so i was looking at it and could it be as simple as a o camshaft retainer plate? it has a build in thin o ring which if fails will drain pressure as it connects the oil gallys. Am I correct in thinking that this could solve my issues? Any input is helpful, thanks.

CamGTP · February 17, 2020

Yes, that is possible. At that mileage it would be worth it to replace it and see if it helps.

Grumpy Bear · February 17, 2020

What Camron said plus there is a Melling high volume pump for just this situation.

Aidan Grant · February 17, 2020

I have a new melling high flow oil pump installed. Do you know if I was to strip down the front of the engine and blow compressed air into the oil pressure sensor if it would leak out of the cam retainer if it was to be leaky? Thanks.