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Oil pressure gauge reads low or 0:
Well my TJ just started doing this about a month ago and I finally went out and bought a brand new oil pressure switch. I put it on yesterday and drove it around today and the CHECK GAUGES light came back on and the oil pressure is at 0. Anything over idle i get oil pressure but never reaches 40.
I ended up replacing the oil pump in my Jeep. After I replaced it, the Jeep developed a faint knocking sound coming from within the oil pan. I'm almost positive it's either crank or rod bearings. I do have HIGH, normal oil pressure now though.
I have talked to a lot of people with 97s and most of them do it.
On mine, it's just the oil guage. And it's only in that first few seconds upon start-up or re-start. A mechanical guage is a very good idea though. It would surely be more accurate. And as far as knocking and tapping...I have absolutely no knocking. There's a little tapping, which is constant and faint. But this just sounds like normal lifter/valvetrain noise to me. I did some rsearch a while back on the tapping, and everyone seemed to conclude that it was normal with all of the 4.0's.
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Oil Pressure maxed out:
Ignition Key Won't turn:
I learned something yesterday. Out of the blue the jeep key wouldn't turn. I wiggled the steering wheel, shift lever, hit the brakes, jiggled the key no luck.
AAA would only pay $50 and the locksmith they contacted said it would be $250 (He
claimed it was a problem common to most chrystler vehicles that the wafers go
(wafers are used in place of tumblers on some locks see
Windshield wiper stops working:
If your in freezing weather it's possible that freezing rain or water from snow melted on your windshield with the defroster on has gone thru the vent right in front of the windshield and frozen the levers coming out of the motor. Pore hot water on the which is on the drivers side of the vent. Step 1. Check Fuse
Step 2. Turn wipers on. Wiggle the switch, try every position while watching for any movement of the wipers. Watch closely, they may move a tiny bit if you hit the sweet spot on a bad switch.
Step 3. Turn wipers on. Nudge the wipers by hand - not too hard. If the wiper motor has a dead spot a little nudge might find it.
Anything beyond these methods is a little more advanced like checking bad connections with a circuit tester, wiggling plugs, taking the switch apart etc. Try steps 2&3 and if you're feeling adventurous, come back and ask for advice.
Try removing your front cowel (where the windshield wiper motor is) and then run the wipers. It is only a few screws (there are two screws behind the rubber gasket between the hood and the cowel; The rest are on top.) and you can visually check the motor. If there are some parts moving and they still aren't working, then I would say something is stripped and needs to be replaced. I don't know if the wiper motor gets changed from model to model, but you probably can get a motor for that at a junk yard for cheap. It is not a complicated system. Unless we are talking electrical.
What oil to use
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