Mechanics' opinion needed:

[Walker]

Since there's no "other" forum anymore, I'll post here.



It's a "gasser" question, but an automobile none the less:



Info. : On my 97 Jeep Wrangler (2. 5L 4cyl. ), I'm getting engine stumbling and then a drop to 0 (zero) oil pressure reading. It causes the "check gauges" warning light (and chime) to go off intermitently (every few seconds).



Q's: Is it the oil pump? Or, just a sending unit? Or, even a engine bearing maybe?

How do I test for the problem?



Since I get good pressure while driving (higher RPM's), I assumed the pump. Since it's mechanical and not electrical.



Any ideas?



Thanks

 

[ToolManTimTaylor]

collapsed lifter?? The engine stumbles a bit?

 

[FFutch]

Try to hook up a manual oil pressure gage into the oil galley to verify the low oil pressure. I always double check electric senders. It's not a G. M. 2. 5 is it?I rebuilt a 2. 8G. M. v-6 in an older jeep. The crankshaft was destroyed from a spun rod bearing. According to the local machine shop guy,this was a common problem on the older jeeps. I had the same symptoms as you but it was knocking . Do you have any unusual noises at all?... Doug

 

[illflem]

Probably just the sender or it's wiring.

 

[Steve St.Laurent]

There is still an other forum - what do you mean? It's visible only to members but it's there.

 

[Walker]

Steve,

I see it now! I had to get my membership re-activated since I changed email addresses. I couldn't see the "other or rigs spotted" forums until Robin hooked me back up. If you need to move this topic, go ahead.



Thanks



As for the Jeep, I bought it used and it does have a bit of a "clatter" (but not the good cummin's kind), but I can't tell if it's a bad sound or not. I haven't learned all the noises on this motor yet, and/or if what is normal for the 2. 5L.

 

[Oxjockey]

Try http://www.jeepsunlimited.com - btw, it sounds like too much oil in the cc.



Bryan

 

[catoiler]

Walker, my dad had a 96 with the 2. 5 that thing was the worst pos in the world!had problems from the day he brought it home from the dealer,anyway at 35000 miles the same thing happend and it was a bad bearing and bent rod. he ate that bill. the stealer would not cover it ,said he was "hot rodding" it..... HA HA. on a good day that thing would almost get out of it's own way.