oil pressure

[ridge_runnerxj]

does any one have problems with their oil pressure guages. on mid 90's xj's. mine pegs out alot and sometiomes doesnt get over 10 psi? i got a 95 xj.
weres the best location for an aftermarket sending unit?

[ibjeepin821]

oil preassure sensor could be going

[Matthew Currie]

I got my sensor unit at a local parts store. Even there they're not cheap, running in the 30+ buck range, I think, But your problem is probably there. Check the wiring first though. On post-91 systems, it will peg if it is disconnected or if resistance in the wiring or connection goes up.

[AlohaBra]

Clean the contact on the sender first. Then replace if necessary.
Test by disconnecting...should read zero. Jump the wires and it should peg.
Might be a grounding problem also.

[Matthew Currie]

Clean the contact on the sender first. Then replace if necessary.
Test by disconnecting...should read zero. Jump the wires and it should peg.
Might be a grounding problem also. That's the Renix rule. Reverse it for Chrysler (91-up) sensors: it will peg when disconnected, and drop when shorted.

[ridge_runnerxj]

ok wel ill get workin on it when i get home. thanks guys

[wantedu2cme]

now im not sure of your problem but ever time i came to a stop light/sign my oil presure would drop to 0 and the check gauges light came on at idle in park my oil presure was 10 psi raised idle it would only get to 20 psi i replaced the sending unit and oil pump and did not fix the problem i replaced mains and rod bearings this still did not fix the problem i finaly replaced cam bearings and that did the trick now my oil presure at idle in park is 50 psi and at a stop light/sign 40 psi runs great