Hey guys I tried to search but the search isn't working but i have an issue... when i start the car the oil pressures about how it should be but its a little below 30 but after the car warms up the pressure goes to zero. Whats causing this? my oil pump giving up? Oil just to old and thin? or is the gauge going out? If u have any other ideas let me know or if u know how to solve this problem plz help me. I appreciate it guys. -Matt

 

Probably a bad gauge sender. If you really had zero oil pressure, you'd know about it in a hurry.

 

Yeah, mine does this sometimes too, after searching I realized lots of people have this problem, im gonna try changing the sneder/switch ans seeing what it does, if tis not that then the actual gauge is probally whack.

 

well you have an oil pump from 1986 running in your oil pan right? well hopefully that isnt the problem, but it very well could be. check the sending unit and guage first

 

An oil pump is a dumb enough device that they very rarely fail. When they do, you know about it, because you have no oil pressure at all, and your lifters and bearing start making hellacious noises as your engine eats itself.

 

if you really had ''0'' oil pres. would the fuel pump even come on???

 

Yes

 

Well i have been playing with the car and once the pressure drops due to the car heating up it starts to smoke pretty good. its white smoke so its an oil leak... but when it is running with good pressure its a very light white smoke that you can barely see.. but once it heats up there is a light white cloud from the exhaust. i hope that this helps someone on aiding in the solution of my pressure problem. thanks so far guys. I haven't been able to check anything yet. i will when i can. thanks -Matt

 

White smoke is usually coolant burning. Have you noticed the coolant level going down at all?

As for your oil pressure problem. Look at the oil, make sure it is not milky (water in the oil from a bad HG).

Also, connect a mechanical gauge to the engine and read the pressure to verify that your sender is correct.

 

yeah if the motor was burning oil it would do it a lot at startup, not only when the car heats up.

 

i have a light amount of coolant leaking but its from the bottom hose of the radiator. yea the car has a slight miss from where its sitting in the garage but once it heats up it runs smooth but once i get the go ahead from the court (lol a long story check my other posts about the state police) i will check all this out but until then it will just set.... thanks guys and plz continue to help me solve this. -Matt

 

oK I Changed th oil sender a few days ago and it fixed my problem, my oil psi stays at 30 in drive and at idle it goes barlt below that, but its steady now.

 

My gage goes whacky a lot (drops down to nothing) - but when I physically tap the gauge panel cover, it'll go back to normal. Bad gauge (Sometimes at idle in drive (like at a light), the needle goes up and down really fast, but as soon as I hit the gas it reverts to normal)?