1993 Dodge Caravan engine problems

Steering belt tensioner fractured, resulting in power steering lost and vehicle overheated. Tt consumer states design of the part is poor with metal to metal contact until center pivot bolt freezes to the housing and the bolt shears. *slc

I am having a problem with the A/C, heater switching to blow out through the defrost when accelerating or under load causing poor cooling/heating. I talked to chrysler and they said it would cost to figure out what is causing it to switch. I have had the compressor replaced while it was under warranty because it was leaking. I had to replace the cooling fan after warranty. It failed again almost a year later. But the part was replaced with only installation cost.