Ball joint put in and now SES light?

[hugger6933]

Well if it could happen yep it would happen to me. I had my guy come to my shop the other day and put in all four ball joints and an axle in my 05 Z71. He had some trouble pressing out and in the new one and Once or twice before I left him to go to the Doctor, I heard him hitting on the A-arm. Now after he got it all back together, as soon as I brought it out of the shop the SES light came on. It has never been on as long as I have been driving it since I built it back a couple months ago. But now it has PO449 and PO455. Those are gross evap leak and evap vent malfunction.Has anybody got a clue as to what to look for? Please help a brother out! Jim