I have a 98 Tj - Sahara Model.
I bought it used from a local dealer and on my first test drive, I noticed the tach and speedometer would go dead, although all the other gauges continued to work, also the airbag warning light would come on. Before buying it, I told them I wanted that fixed, they said no problem. This was the beginning of the problem. They told me they fixed, found a bare wire, yeah, that's what we found. Anyway, it contiuned to have problems so I took it back and went the rounds to have it fixed. I had to do some research, and found out that there was a Jeep memo that talked about this problem, and that the fix is a module that needs to be replaced. The dealership paid for a Jeep dealership to fix it. Only that just made the problem worse, now the dash is "off" more than it is "on". The jeep dealer also said the module had already been replaced, and said they tried something else, but said they couldn't guarantee their work.
Has anyone else out there had a similar problem with their dash? How did you fix it, if a dealership can't even figure it out. I have no confidence in our local "jeep" dealer.
I have a friend with an 98 XJ and his jeep just started doing the same thing. I've owned a few jeeps, but dealing with this problem, and dishonest dealerships has taken most of the fun out of the Tj.