Once in awhile, my T/A won't kick over. I'm thinking maybe it's VATS. Seems like if I turn the ignition to off, and then back on...it'll kick right over, but never had a car do this before. Any clues?

 

Ya, mine doest sumthin like that also, i posted on ls1tech.com, next time im in there doing changes im going to check out the starter and maybe do the relay that was suggested. Check out this link, might be helpful

http://ls1tech.com/forums/showthread.php?t=321304

 

Loose battery cables can cause intermittent starting problems and so can bad battery cables.

 

See if the security light is staying on the next time it does not start. That will tell you if it is VATS related.

 

Yes....the security light is on when I am trying to crank ....probably a bad key? Anyone have any luck replacing the "sensor" with a resistor? I have heard that that is all it is