about 1/4 of the times i try to crank my sub. i just get clicking and the other half it starts right up. any clues? (1990 6.2 Burb) I've been thinking of switching to the 6.5 starter think this will solve the prob? Also, I'm in south Alabama and its hot as balls down here so i guess this could have a little to do with it? any help is appreciated.