[jackr]

This just started happening yesterday. It would be reading normally (55-60lbs)& then it would drop to 10-20lbs & then go back to normal. It doesnt seem to matter if its at idle or going down the road.
Any ideas???

Thanks

 

[FSM72GTV]

Oil Pres.

Jack:

I had similar problems the guage readings were very erratic. The readings would go from 10 to 60 in a less than a second. It turned out to be the oil pressure sending unit. Located on the right side of the engine block just above the starter motor. I replaced it twice before I got one that worked correctly.

 

[lowmileage]

When I get around to it , I'm going to rig up a tee connection and keep the stock unit and connect it to a Auto meter gauge which I already have installed .

 

[crashmctavish]

yank the wire off the sender & short to earth it should go full scale FSD. If it does its your sender unit has failed which is a common fault.

 

[jackr]

Thanks guys..

I'll replace the unit and see what happens.