low oil Pressure

excess sealant could of plugged up the pickup screen.

 

well should be easier the second time around, I think I will cut the cross member off where the top of the radiator is to make it so I can pull it out at a straighter angle, has anyone here done that before I have seen photos of it done

 

cold 55 psi at start up about 10 at idle. hot 0 psi at idle 6 psi at 2000 rpm

 

excess sealant could of plugged up the pickup screen. I was thinking alone the same lines maybe even got past the screen and a hunk in one of the passage ways

 

Thanks. I knew you would probably have some good suggestions.

 

never took the pickup off the screen was fine just pulled the lower pan and put a new one hence my quandary

 

I never took off the upper pan just the lower it had a hole in it

 

Are you using a mechanical or electric oil pressure gauge. FWIW - the oil pressure sender (electric) on my 4.0l went "erratic" last year..... after troubleshooting the sender (resistance readings) and checking all electrical wiring and connections, and a discussion with a VDO tech, I replaced the sender and that fixed the problem.

 

its a new mechanical gauge and the sending unit is new too

 

I also got a VVT Code pressure to low to move the cams

 

I'm a little confused ... mechanical gauges usually run a capillary tube directly from the engine to the gauge, no sender is used.... did you "bleed" the air out of the capillary tube

 

its on a tee sender on one gauge on the other just like the picture at the start of the posts. And no I did not bleed the tube even with air in the tube your VVT cams are not going throw codes, low oil pressure will though

 

hang in there. It's just nuts and bolts, you'll figure it out

 

Not mine. I have a 2.7L...
I also assumed that the OP had a 4.0L, but it seems he has a 2.7 also.

Does he have a true gauge connected with tubing or does he have an electronic pressure sender unit?

If tubing and he had the suction off he could be sucking air causing a loss of pressure.
If he has an electronic sender I would suspect a defective wire or a defective sender.

 

Me Too.

 

if the oil pressure relief valve was stuck open would that give you low pressure?

 

Surely not. If so, what’s the purpose?
You’d go from too much pressure to not enough.
Which doesn’t make sense to me?

 

I don't suppose you have tried changing the oil and filter now have you?

At the very least you will have an idea of what it's doing to your internals.

 

From a quick google search......
"A pressure relief valve that is stuck open can allow too much oil to bleed off. This results in a lack of oil pressure and catastrophic engine damage. A valve stuck closed will result in excessive oil pressure. This can blow out the oil galley plugs in the engine block."

 

oil and filter were new, should have the motor out by tomorrow ill dig into it some time this week ill update on what I find out