As I mentioned, it all started with a short in the windshield wiper motor. From there, it progressed to the ignition coil (which I already bought) and the diode plate (which have already been replaced). It was there that the mechanic either didn't assemble the alternator correctly, which is why there's noise in the tensioner, or he damaged it. Now, another question is that they checked the windshield wiper motor relays and they're working, but if I put them back in, will it cause another short circuit? What should I do? Can you advise me? Thanks. The van is a 1996 Town & Country
. Note: I've noticed that the van's plastic components are very brittle; they break very easily, and some parts are very worn and break down very easily.