I was recently vacationing in the DC area during one of the hottest weeks when our AC decided to flake out about 4 hours into the trip.

I found these guys via the web and brought my car in. They fully tested the AC system and after 2 days of running the car and driving it, they couldn't replicate the problem. They thought I might have a bad AC compressor clutch but couldn't be 100 sure.

They gave me the option of installing a new AC compressor but advised against it. I took their advice.

At the end of this, they only charged me for the gas they had to put into my car to run it while testing.

I'm sure I would not have gotten the same treatment with another mechanic or dealer. I only wish these guys were in RI. I'd become a lifelong customer.