Last year, you did a routine tune up on our Mistsubishi Mirage to include replacing te timeing belt. Shortly thereafter, the engine died on us. We took it to another mechanic and were told that the bolt or nut that hods the timing belt pully was left loose and caused the engine to get so far out of timing that it basically imploded from within. I wish that I could have had enough proof to prove it, but in the end, we had to put a rebuilt in for $2,400. As a result, we will not bring any of our three cars in to your shop and hopefully, no one who asks me will either.