It is on the TOP right rear side of the engine. You will have to climb up and lean over the top of the engine to see it. Just behind the corner of the intake manifold.
The original answer is incorrect. The low oil level sensor is located where the original answer states. The oil pressure sending unit is a separate part. The sending unit is located on the left rear top of the engine, behind the intake manifold mounted into the top of the block.
The oil pressure sending unit on the 4.7L engine is right above the oil filter.
If you tell me the engine size, Then I'll tell you were it is.
Where is it located on the engine
The oil pressure sending unit on my 1997 silverado is on the top of the engine behind the intake manifold. It took a while to find it.I had to climb on top of the engine and look down to the block up near the firewall I was having eratic oil pressure readings and the sending unit was the problem.
"http://wiki.answers.com/Q/Location_of_oil_pressure_sending_unit_1990_bronco_351"
With a 4.3L engine, the oil pressure sending unit is in the back of the engine just to the drivers side of the distributor.
where is the oill sending unit on 1987 silverado.if it is bad does the gaue not work all of the time
On the passenger side of the engine above the oil filter
Above the oil filter.
Remove the oil pressure sending unit retaining ring. Remove the wiring harness from the sending unit. Poll the sending unit out of the engine.
location of oil level sending unit 6.6 disel