Trying to find the oil pressure switch on my 1990 K1500 WT pickup with a 4.3 L engine. Have not been able to locate it or any good pictures or written description of where it is located.
Thanks,
Bill

 

The oil pressure sensor is located on the top rear of the engine, near or behind the distributor, usually lower down on the block. It might make it easier to pull the distributor off or at least the ignition cap.