My car is a 93 and has nearly 200 k miles on it. It has always run fine, and hasnt needed a whole lot replaced (a new transmission a few years ago, an alternator a month ago, some windshield wipers, brakes and oil changes; that'* it in the past four years).

For two months now, the oil pressure gauge will jump around sometimes (never to the low danger area, just from normal to high), and well eventually settle at either the normal range or way past high. There is enough oil, and i recently had an oil change, and this is the only gauge that does this. I would take it to a mechanic but the only ones in my area are total idiots (I went to get my wipers fixed, they ended up messing up the horn, turn signals, and leaving grease on the entire dashboard). What could the problem be?

Any help would be GREATLY appreciated!!!

x2

My brother'* 90 Olds 88 did the same thing. We replaced the sensor quite some time ago but it went bad again and we never bothered to fix it.

The one in my T Type does the same thing. I can touch the gas and the gauge goes crazy and maxes out.

I usually have good luck with Napa parts

Right now the gauge being weird is the least of my worries... gotta fix the windows, windshield leak, new carpet, yadda yadda yadda....

i just bought carpet from stock interiors dot com and it came nice, with a heel pad and all.. i can forward you pics of it if you want to see exactly what it looks like.. about to install later this weekend... i had light gray but went to black...

Let me know if i can help in any way with that

BTW it was 120 delivered., UNCUT, with extra all around... perfectly molded too, and it came with padding to replace most of whats under the carpet stock.

Status, please stay on topic. Go back and read the original post in this topic if you need a refresh.

Thank you so much everyone who helped me figure this problem out!!! Now I have another question though...if I choose not to get the gauge fixed (it'* an old car and I dont have money to spend on parts that are not absolutely necessary), will this cause any problems with the oil pressure, engine, etc. that will cause the car to stop running?

Once again thank you to everyone who helped me out and answered; I really didnt think that I was going to get any help (glad to see some people in the world are still friendly). I hope i can return the favor sometime in the near future!

93 & older cars used the oil sender as a secondary power supply to the fuel pump. If the sender shorts out & blows the fuse it'll leave you dead in the water. I'd play it safe & change it.

The fuel pump primary circuit runs off a relay controlled by the pcm.
The oil pressure switch does complete the circuit for the fuel pump. They are designed so if the fuel pump relay fails, power will still be provided through the oil pressure switch.