1986 S10 Blazer 4X4 with 2.8L, The oil sender is located just to the right side of the oil filter and is a pain to get to...
on the block under the intake
The 1985 Toyota Camry oil pressure sender is located on the left-hand side of the engine. The oil pressure sender will be just above of the oil pan.
its the valve just above the oil filter with one lead coming off of it
The question should read 1989 Ford F250 7.4 liter engine...Location of Oil Pressure sending unit...
check the sender
the oil pressure sender on a 2000 gmc is in the back of the eng. top side
next to power steering pump if motor is 4.0
Next to the oil filter
Round shape oil pressure sender on the passanger side to the right of the oil filter. Oil pressure sender sends how much psi your oil pump pushes out to the ecu.
The oil pressure sender on a Mazda B2500 2.5 is located on the bottom of the engine near the oil pan. It constantly monitors the output and circulation of the oil pump.
A standard measure of oil pressure is 10lbs per 1000 RPM. If you have low oil pressure, check to make sure the wire to the sender is connected and clean. I would also replace the sender with a new one as these can be faulty; buy it from your dealer and have them print out a picture of where it is located if you are not sure of it's location. I hope this helps you. Mark
The oil pressure switch and oil sender for older 454's are mounted on the lower left front of the engine block just above the oil pan.