It is a 82 300TD. Dash lights dont work tach dead and cant get the a/c to work. Suppose to be getting a manual from previous owner. Have a 97 ford power stroke and a VW Jetta 2005 TDI. Just dont know where to start or what questions to ask. Got it because I make my own biodiesel and the engine is in good shape 215k on the clock but it has been rebuilt by the local Dealer have all receipts. Main concern is to get dash lights and a/c working. Put new belt on compressor changed over to r134 worked for about 30 minutes now cant get compressor to engage. Any help will be greatly appreaciated. Jeep Taylor