My 1992 Laredo's oil pressure gauge acts normal then all of a sudden the gauge will shoot up to 40 lbs. at an idle to way past 80 lbs when accelerating. Anybody have this happen to them.I suspect a bad sender but,I don't know.Though I'd ask first instead of throwing parts into it.

 

What you describe is almost always a bad oil pressure sending unit.

I recommend buying this directly from Jeep for the best reliability/accuracy/mating with your factory gauge. There are more than a few (including me) that have had trouble with (some, not all) aftermarket units. The OEM unit is worth the extra $20.

 

tjwalker, thank you for your response.I think that's what I'll do.

 

And don't be surprised if it goes out again. They're notorious for doing that. I'm on my 3rd or 4th on my '92 with <150k miles ... and I always buy sensors from the stealership.