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Panama City, FL
A little background...my Buick ran fine until I had a new air compressor installed. The old one had been unhooked for about 6 months before it was replaced. The person who unhooked it did so bc they said it seemed like it was trying to lock up. At that time the air wasn't running and the bearing had gotten so bad. Other mechanics who have seen it said this wouldn't have been a problem. After the replacement the car ran beautifully with cold air for 2 weeks. Then, every time I would turn the air on it would shake like it was going to stall out. Every time I took it in to the mechanic it would supposedly run fine. Even without running the air it starts to shake like it wants to stall out, it idles rougher at lights. It doesn't want gas when it starts to shake, you have to lay off the gas and hope it doesn't stall. Many times it doesn't but it will feel like a drop, like a loss of power, and the engine light will come on, the shaking will stop. Lately it has to idle for a couple minutes before you can put it in reverse or it stalls out. I have had the fuel filter changed and the map sensor hose replaced. The mechanic says nothing is wrong with it, but clearly something is. Other things that may be of interest: the ignition key is taped into the ignition....it holds my steering column together. I was told by the mechanic who advised this that it was not a problem. Also I have had to disconnect the horn since either while driving or while parked and off, the horn with go off for a few minutes straight. The car has less than 200,000 miles on it. Someone once told me that my car should have 2 fuel filters (one in the line as well)?? Any direction you can provide on how to solve this problem would be greatly appreciated. Oh and the compressor I had installed was brand new...and for the last few months, unusable. Also it seems to act up more if it has been driven more or if it has sat in the sun.