What is the location of the oil sending unit that controls the oil pressure gauge on my 1984 Z28 Camaro ? The car has a 305 with a Q-Jet 4 bbl carburetor and an automatic trans.. Please help. I have been getting a lot of different answers. I car want to make sure I replace the right part. My gauge reads correctly when I first start the car but when the motor warms up the oil pressure falls to just above the red area at the bottom of the oil pressure gauge.

 

On the top of the back of the block, underneath the distributor, behind the intake manifold.

 

Thank you. I heard that is where it was. I wasn't sure if it was that one or the by the oil filter, If that one is present on a 1984 Z28 with a 305 carbureted engine. Thank you for clearing that up for me.