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I have a 90 2.3L Ranger. The oil pressure starts varying to zero once the motor gets warmed up. I believe the screen may be getting plugged. Is there a chance that the product that you use before an oil change called Motor Flush will help clean the screen. Do you believe the screen is the cause of the low oil pressure problem? I'd appreciate any feedback.
> I hate
>to break it to you, but
>you have to pull the pan.
>It is like that on just
>about any engine from Ford to
>Mack.
motor flush will loosen all the sludge in the engine. It will then completely plug the screen.
I tried something different with same result. Either my screen is plugged or removing deposits and or varnish from the bearings caused oil leaking intenally resulting in lost pressure. I gave up on my truck and moved up to f-150.