Idoworkz88@gmail.com

Hey guys,
my name is mike,

I'm new to this forum I just bought a 1994 f150 302 5-speed manual 4x4 126000 miles.
I'm trying to figure out if my oil gauge pressure is normal to be at the letter O and does not move even when I accelerate or when it warms up or when the motor is cold.

Can someone help me figure this out??

I just don't like the fact that it's one third of the gauge and never goes up...

1990 5.0

This is completely normal. Your truck has an oil pressure sensor. It just verifys you have some oil pressure and then it sits at a spot in the gauge cluster. Its not a legitimate oil pressure gauge.

jkenprice1

Oil pressure only goes so high. I don't know whats normal on new trucks. Back in the day 40psi was about standard. Pressure was determned by the clearances between bearings and the cam and crank and by the volume and pressure of the oil pump. There's also a pressure relief valve to keep keep pressure from getting too high. If you had a real gauge, you'd see the pressure is actually a higher when the oil is cold and comes down as the engine comes up to operating temp. Speed is not a factor once your above idle. How high the needle goes on the gauge doesn't mean anything because it's not really a gauge, it really doesn't show changes in pressure, it just shows you have pressure. The needle has probably gone to the exact same place since the truck was new. I wish trucks had real gauges. The only was to have a real gauge is to install aftermarket ones.

Idoworkz88@gmail.com

Okay I get it that makes sense. thanks a lot guys for your helped. I think I'm going to actually grab a real gauge just to know what oil pressure my motors pumping because I just bought this truck so I want to know where its running at.

Thanks again

Chris_1

iTrader: (1)

Sometimes just putting a new sender at the motor end will put that gauge at a different spot that makes you feel more comfortable.

jayber

5-8psi is where it falls to 0 iirc