Car Problems...Again!

I am so done with my car. Here is an abridged history of its issues.

Early October 2011: No heat. Got it repaired by a local guy in Des Moines. He lost my spare key, flushed out my heating core, and left me almost $200 in the hole. Some heat.

Early November: No heat again.

Early December: I had an interview at Hy-Vee Corporate and my car overheats, has no AC and won't start without smoke.

Few Days Later: Have the car towed to AAMCO. It takes them about 4 days to fix it. And almost $600 bucks.

1 Week Later: No heat again. I drive my car home to Missouri and have my parents look at it. They find some small things and get my AC working again. Minimal heat.

Early January: Take the car back to AAMCO. They think it is the thermostat. Finish it the same day. I drive it home with no heat and about $160 poorer.

Today: Call them back, fed up because it was cold today. I am already almost $1000 in the hole for this car and I know it isn't even worth the repairs it needs.

Too bad AAMCO won't even look at my car for free to see what is wrong. When I called, the same guy I dealt with in the past (who is very nice, by the way) seemed like it was no big deal. Of course it is no big deal! You charge me almost $100 in labor per hour and keep me coming back.

So here I am again, hoping and praying when I take it back tomorrow that they don't charge me for any more repairs. I am sick of them fixing things they think are wrong. I just want the guessing game to be done and for them to fix the problem.