What r some things to look for or how do i go about testing parts on my 88 t/a to find out why my oil pressure guage is not working.

 

the most common cause of not showing oil press. is the sensor . located just above oil filter . not very expensive , not too hard to change . be careful of old/brittle plastic on sensor . good luck .

 

thats the sensor for the fuel pump, what he wants is the oil pressure sender, it is screwed into the block behind the intake manifold towards the drivers side of the dizzy

 

On older models like yours, yes. On the 88 TBI it's where Uncle Tom described

 

really.. thats funny, cuz the 305 TPI engine in my 85 was before the rebuild originally an L03 TBI that came out of my old rusted decrepit 88 RS. take a wild guess where it was? on top. the only sensor in the filter housing was for the fuel pump.

 

Well, you can put one there. It's easier to get to and an easier place to connect a manual gauge for testing.

 

im just stating that mine was there from the factory on my 88, and still is there on my 85

 

chevy, take his word for it. I changed mine too and it's right above the oil filter.

 

The sending unit was on the back of the intake and I replaced it and my oil pressure guage is workin now. Thanks for the info

 

Some cars had them on the china wall, some had them above the oil filter, and some even had both - the cars with both had a seperate unit for the fuel pump and a seperate unit for the guage.

 

I am having some problems the same!
I swapped to carb from tbi and removed the sending unit near oil filter and kept the one near distributor with 3 wires and screwed it near oil filter and blocked the other and gauge is not working!
I am with a mecahnical fuel pump so I need to know which wires to remove or use!

 

Does anybody know where it would be on a 327