I have intermittant starting problems. Six or Seven great starts and then a "hestitation" start, the next start then usually take two or three key turns. These bad start usually accure late the afternoon (warmer) and after starting the car fine all day. I have notice a small spark when I put the key in the igition sometimes and then the starting issue. Can this be a grounding issue. Can the car be grounded and the ignition switch not. Car starts great and runs fine except for this issue.