I bought this
http://www2.towerhobbies.com/cgi-bin...?&I=LXJ802&P=K .
trying to start a glow plug with it was going well for the first two times.
Now When I put it on it wont light the plug. I have to not quite put it on all the way and wiggle it a bit till the meter shows me it works. I try when not in the engine to make sure and its the way it is .....whats up?