Oil pressure switch

[kyleag89]

I have a 94 firebird 3.4L with 100,xxx miles. Just recently my cat broke and created an exhaust leak. Since that happened my oil pressure would shoot over 80 psi when I took my foot off the gas. When idling the car is fine and holds about 20psi then when Im at 2000rpm its at 60psi but when I take my foot off the gas it shoots to over 80 for between 2-30 seconds. I thought this might be because of some kind of back pressure from the hole in the exhaust so I replaced my cat and still has the same problem. I dont think I have a faulty guage because the car smells like burning oil and has oil all over the bottom of the engine which wasn't there before.

So do you think I might just have a bad oil pressure switch?

[Genopsyde]

first find where you're losing the oil at. could be coming out of where the pressure switch screws in.

[kyleag89]

The problem isn't where the oil is coming from.... The oil didn't start to leak until about a week after the high pressure situation. I believe its only leaking because the engine is running over 80 psi with nowhere for the oil to go.

[Genopsyde]

drop the pan and change the pump then.

[kyleag89]

Would loosing oil cause my pressure to shoot through the roof?

[kyleag89]

Does anyone know where the oil pressure switch is located on the 4th gen Fbodies? Ive searched but I cant find anything. Thanks

[poormillionaire2]

Its right above the oil filter. You'll have to jack the car up on the driver's side. You'll also need a special deep socket to remove it too. Later models have it located behind the intake manifold on the driver's side.