I have a 1998 GMC Jimmy the left headlamp was bouncing when I drove it seemed to be loose. As luck would have it some hit the right front bumper and put a hole in it. I had it repaired (insurance covered) at a body shop and asked them if they could look at the headlamp. When I picked it up they said they tightened it up and that should stop it. Yesterday was the first I drove it at night and now it seems to be aimed very low. How do I adjust them and will that cause it to bounce again.
Tim