Hey guys, I'm in the process of buying a 1999 Cherokee Limited. The guy who's selling it is telling me that there is a faulty sensor somewhere in the vehicle. He told me that after an hour or so of driving there is a delay before the engine revs up (I believe after a complete stop).

I want to know if an electrical sensor is the cause of the problem or if its something else that might be a PITA to fix later.

Thanks for the help.