OK. Here's the skinny. I was driving down the highway at 65 MPH last night. Something sounded a little funny, so I looked at my guages. The "Check Guages" light was on, and my oil pressure is at 0. Sometimes it has done this in the past few months when idling, but never at high RPM's. I pull it over, and call a friend to come tow me to a local Auto Shop and leave it there overnight. When I go there this morning, I start it up, it turns over just fine, and starts to shake and screech like there is no oil getting to the top of the engine. By the way, I did chck the oil, and everything was fine - plenty of fresh, clean valvolene on the dipstick. Then, after the jeep sputters for a few seconds, the oil pressure goes back to normal, and everything is fine.

The mechanic looks it over today, tests the oil pressure, and says that he can't find anything wrong with it. Although, I figured he would pull the oil pan and see what was going on down there...but he didn't. Also - my Wrangler does have a very minor oil leak coming from the crankshaft seal, and my radiator has a leak.

So, I asked for an estimate on:
1. Replacing the Oil Pump - just to be safe.
2. Replacing the Crankshaft Oil Seal - so I can stop having to park over a cardboard box.
3. Replacing the radiator - hell, why not. I'll have to do it sometime.

Here are the estimates from the mechanic:
1. Replace Oil Pump - $360
2. Replace Seal - $160
3. Replace Radiator - $500

These estimates seem really high to me. I can get a new radiator for $200 - is there really $300 worth of labor involved? I can pick-up an oil pump for $75 - is there really $285 worth of labor involved in replacing the Oil Pump? And lastly, I have no idea what it takes to replace that seal.

Can someone out there let me know if these costs from the mechanic are reasonable? I know I can put the radiator in myself - so at least I'm saving $300 there.

One last bit of information on the oil pressure / oil pump replacement: Just before I lost my oil pressure, I had put in Bar's Leaks Rear Main Seal Leak Stop. I put it in before driving home that day...trying to get that front seal to stop leaking. Maybe it isn't the pump after all - hell, I don't know anything anymore.

Any help from you Jeep Junkies out there would be greatly appreciated. Kind regards, ac.