meatmonkey
NAXJA Forum User
I recently picked up an 88' 4.0, 2-door, auto, NP 231, XJ over the past weekend. It is in very excellant condition considering that it has 178,000 on it.
The problem is that the four wheel part time light on the dash is always on, no matter what position the transfer case is in, it even is on in neutral. I can tell by driving it that when the transfer case is in two wheel drive, it is actually in two wheel drive. This light apparently isn't triggered by the transfer case.
This leads me to believe that it is actuated by the vacuum front end. Can this light be accurately used to tell me that my frontend is locked in? I ask because I have heard horror stories about Jeep's vacuum disconnects. If my frontend is indeed always locked in, is there any problem driving it around like this on the road? The frontend obviously wasn't designed to constantly be turning, if it was then the vacuum disconnect wouldn't be there, but will driving it like this wear out U-joints or any other parts?
Also, a couple of days ago I was heading up my driveway and it started to spin in two wheel drive. I stopped and shifted into four wheel. I released the brake and the rear tires continued to spin and there was what sounded to be a quiet "clicking" from the frontend/transfer case area. It sped up as the rear tires sped up. I then shifted into four low, and it went into four wheel low and I continued up the driveway. This is the only time it hasn't gone into four wheel drive in the dozen or so times I have used it so far, is it anything to worry about? An omen about future breakage? Or did I just not pull the lever far enough or something?
The problem is that the four wheel part time light on the dash is always on, no matter what position the transfer case is in, it even is on in neutral. I can tell by driving it that when the transfer case is in two wheel drive, it is actually in two wheel drive. This light apparently isn't triggered by the transfer case.
This leads me to believe that it is actuated by the vacuum front end. Can this light be accurately used to tell me that my frontend is locked in? I ask because I have heard horror stories about Jeep's vacuum disconnects. If my frontend is indeed always locked in, is there any problem driving it around like this on the road? The frontend obviously wasn't designed to constantly be turning, if it was then the vacuum disconnect wouldn't be there, but will driving it like this wear out U-joints or any other parts?
Also, a couple of days ago I was heading up my driveway and it started to spin in two wheel drive. I stopped and shifted into four wheel. I released the brake and the rear tires continued to spin and there was what sounded to be a quiet "clicking" from the frontend/transfer case area. It sped up as the rear tires sped up. I then shifted into four low, and it went into four wheel low and I continued up the driveway. This is the only time it hasn't gone into four wheel drive in the dozen or so times I have used it so far, is it anything to worry about? An omen about future breakage? Or did I just not pull the lever far enough or something?