Yeah, I don't blame you on the mechanical stuff, if you aren't sure, let a mechanic do it. We had one tell us we needed a new compressor, for 1200 dollars, but we knew it wasn't bad, just a small part on it, so when they refused to fix it unless we let them do it their way, we got the part, and the whole job was about 225 dollars. Works perfectly now. I want to go say HA!! to them. We went to a place to get parts off old used cars, you walk the lot and take them off and stand in line forever to pay for them. Did you ever see or talk to MIL since she got sick? You know, she would probably like to hear from you. Maybe a card or a call.