it should be next to your oil filter
My Two Cents: The sending unit IS near the oil filter. It has two wires going to it and screws into the block. It's made mainly of plastic and if broken can allow oil under pressure to spew out and give you thoughts of a blown rear main seal due to the amount of oil all over the underside. Its very inexpensive to replace fortunately. Good luck. Momule
above the starter
Not too difficult... That is, if you can find it. I have a '96 JEEP GC Ltd & my oil pressure sending unit was located at the back of the intake manifold by the distributor cap. !!!Pain in the Ass!!!
The fuel pressure regulator on a 1994 Jeep Grand Cherokee is part of the pump module in the fuel tank.
Where is it located on the engine
The oil pressure sending unit on a 1999 inline six cylinder is located on the engine block very close to the oil filter. It is constructed of plastic and metal, screws into the block and has a two wire lead plugged into it.
On the pump, in the tank.
The oil pressure sensor is on the top rear of the engine, next to the distributor.
It is inside the transmission, on the passenger side of the valve body.
On the fuel pump module, in the tank.
It is part of the pump module in the tank.
Depending on the type of motor in the grand, the oil pressure sending unit should be located somewhere on the side of the engine block. Check the wiring harness to make sure of good connection, then trace wiring back and try to find cut or nick in the wiring.
4.0L, next to the oil filter. 5.2L, back of the engine, next to the distributor.