A failing oil pump.. but more likely a clogged pickup tube or screen.. can cause this once you get above a certain rpm..the pump can't keep up with demand so to speak. .
Drop the pan..clean the pan..inspect for solids etc.. .. remove the pickup tube/screen.. clean or replace the pickup tube and screen..those parts are generally pretty inexpensive.
Of course it could be the sending unit.. or a bad ground/short.. yet depending on how well the rig has been maintained..or operating environment.. sludge and solids blocking the pickup tube and screen could be the culprit.
It would never hurt to drain and drop the pan.. new gasket.. new pickup tube and screen..clean the pan.. new filter.. new fresh oil.. some recommend sea foam... just follow the directions.
Best of luck!
If the engine did not make any noise when this happend and if the oil level is also o.k. it might be a simple fix ..the opsu ...oil pressure sending unit...common on this truck.
292 views
Usually answered in minutes!
×