After the check engine light came on twice and was diagnosed ascompressor sensor we took the truck, a2007 chev. silverado, to the lil car hospital. they diagnosed the same problem and proceeded to install a rebuilt compressor,which was defective, thru no fault of theirs. They ordered a new one from the factory and when the work was completed everything ran fine. We are extremely happy with the work they did and completed in a timely manner to get us on the road for our next trip