I bought a 1982 Ford Escort GT and you had a choice, run the Air conditioning or go down the road. I would take it into the dealer and tell them there was a problem and they would dip the carburetor, charge me 300 bucks and give it back. This was during the 5 year or 100000 mile warranty days when they were attempting to build confidence in their products so at 98950 +/- I took it in and asked them to pull a compression test, they called me that evening and said it was fixed so Dad took me over to pick it up. As always they had dipped the carb and wanted 300 bucks, I asked the mechanic did pull a compression check and he argued about the necessity and the owner of the dealership who was standing close by came over and told him, "If they are paying for it then you do as they asked. The mechanic grabbed the compression gauge (we could tell he was angry because it was now after closing) and walked out to the car with the owner in tow, pulled the plugs and checked the first cylinder with perfect results, then he checked the second with perfect results and began arguing with us as he checked the third anddddd 0 compression........ oops..... the owner of the dealership had him pull it into the bay and pull the head with us standing there and when it came of the third cylender didn't have a piston nor connecting rod, I received a new engine courtesy of the Ford Motor Company....