My cars oil pressure is going crazy, it hardly goes over 30psi and that is only when the engine is on while driving constantly. (freeway) But when I stop and idle, the psi goes to 0 or very close to. Not sure what is causing this, any ideas?
I would assume oil pump but thats just me guessing.

Also, my fuel pump make a really bad whining noise and before I even touch E my car dies from lack of gas. (not sure if the gauge is off) Sometimes the engine will run real rough and just die like its not getting enough fuel. Not sure whats up, if the fuel pump is going or what...

 

could be a bad sending unit or bad bearings in the motor..

 

An easy check for the oil pressure is to install an aftermarket gauge. I'd be willing to bet your factory gauge or sending unit is not operating correctly.

 

Easier and cheaper to just try a new sender.

 

I assume you are talking about the first part of the post (oil pressure)
Where is the sending unit located? And what exactly is it? I assume it is what takes the data from the engine and tells the gauge what to display but I just want to make sure.
Thanks for the reply's.

 

its on the driver side rear of the motor above the oil filter.

The oil pump pickup could have fallen off of the pump also..

 

Is this the sender you are talking about?
http://www.partsgeek.com/catalog/199...re_sender.html

And why is one cheaper than the other, I don't see a difference...?

 

watching thread

 

So the oil pressure will fluctuate up and down while idling and than go to 0, still a problem with the sender.

 

999,999 times in a million, yes.

 

I find it hard to believe this since I changed my sender and fuel pump out with a new unit and my gauge still reads 0.

 

Is your motor knocking,is it noisome,because if you don't have oil pressure it's gonna be.It could be your gauges.

 

My car turns over but doesnt fire. It has spark and on members recommendations I have changed out the following: new fuel pump ( again), sending unit, ECM, coil, new battery, oil pressure sensor) I shot cold start into it and it tries to turn over but doesnt. Checked fuses, relays, couldnt find anything wrong. My cars sat in my garage over the winter and I started it up monthly then all of a sudden it just quit. Cranks over and doesnt fire.

I dont mean to hijack this thread but have tried almost everything I can think of.

 

Car dosen't knock, runs fine. Kinda rough sometimes but i think that was my half fast job at rebuilding the tranny. The exhaust is smooth sounding and no hickups or anything so I'm pretty sure the motor is good just the oil pressure thing.

 

It was the oil pressure sending unit, it had oil inside of it somehow. Thanks