Oil leak help...

[GSJoe]

Originally Posted by bans25

Oil leak on pass side of the block I think it may be this sensor near oil dipstick? Any idea what this sensor is? Does this typically leak oil or probable it's something else leaking? I have about 40k miles on my 90.

Thanks much!

The sensor you're talking about is the switch for the low oil pressure warning light in the dash cluster. I and numerous others have experienced a leak from that little bugger. If you can get your hands on it and remove the connector, you might find that oil is even leaking into its wire loom. That was the case with my '90. It's kind of a pain to get at this switch because of everything around it, and some folks have removed the whole assembly in which it's mounted. Others claim going through the right front wheel well is the way to go. My hands are small, so with the right size socket and extension plus a little diligence and a few swear words I was able to replace the switch without removing anything else. If you search "oil light switch" in this forum you'll probably find what others have done. You might also look at Marc Haibeck's article on oil leaks at http://zr1specialist.com/HAT%20Web/a...il%20leaks.htm If I were you, though, I'd first try to remove the connector from that suspect switch to see if there's oil in it and in its wire loom. If so, you've found the source.