I have a sticky situation that I'd like to bounce off a good GM mechanic in a PM. Short version is I took my work mini-van to a dealer for a simple repair, ($282) when I got it back I had a light on the dash and an error code. Now, they say that is pure coincidence and they want $1300 for parts and 3 hours labor... I'm not happy. Would like to run my original repair and they estimate by someone more knowledgeable to see if they could have, in any way, caused this issue while doing that repair. Kind of a You touched it last type deal. Bad thing is this GM dealer is a good customer of mine. However it will take a LONG time to recoup a $1600 loss. This same dealer tried to blow smoke up my tailpipe last winter to get me to do a complete cooling system flush on a 2 year old truck. ugh!