I would start with the "Blue Book" value ( see link below ) and adjust from there by how the vehicle looks and runs.
Your oil pump is shot.
A Cherokee would have the AW4. A Grand Cherokee would have a 44RE.
The closest model would be a two wheel drive with a diesel engine. It can get 30 mpg on the highway.
I would think so.
Yes 93 to 95 are the same
YES....
$29,189 in 1991 U.S. Dollars.Today it would retail at about $46,000 if they were still in production.
The part time transfer case is a model NP242.
A few possibilities here. Oil and oil filter issues, fuel injector issues, cam issues.
Yes and no. As long as the motor is the same, the harness should be the same.
Probably the AISAN AW4
There are two simple answers 1. the wire has come loose from the horn located near the radiator. 2. the wire has come loose from the horn button on the steering wheel. If these are not the cause than there is likely a broken or corroded wire. The grand wagoneer is notorious for corrosion and i am guessing the wagoneer is the same. good luck.