Join Date: Feb 2000
Thanked 0 Times in 0 Posts
Re: oil pressure gauge
My 88 had an electrical oil pressure guage and sending unit, I had the 2.5L though. Never had any guage problems, I actually adapted the stock sending unit from the 2.5L to fit into my chevy V8, still working fine. My sending unit has one wire going to it and is about the size of a D cell batter, only slightly fatter and longer. I think that the sending unit varies the amount of resistance the guage sees w/ respect to ground. So without the wire hooked up to the sendind unit, you could measure the resistance from the terminal on the unit to chassis gnd. Then take this measurement again with the jeep running, have somebody hit the gas and see if the resistance is changing. If it's dead, the resistance will stay flat.
If you know the resistance range of the sending unit, you could put a R in that range between the wire coming from the guage and chassis and see if the guage registers it? Anyhow, good luck!
[img]/wwwthreads_images/icons/cool.gif[/img] Big Ed
<font color=red>'88 YJ, 4" susp,3" body,35's,283 Chevy V8,TH350,4.11's,D30,D35c</font color=red>