Wen i start my car if idont give a little gas it wont start bog out or shut off. I think its either my timing slipped or because i dont have a doughnut in my headers so colletor leaks. I went out today go to work and i turn the key all i get is one click. Lights are good i have two battries i have an Ls withgsr tranny plz help asap i cant miss work again.

 

check your ground wires.... probably loose or broken

 

check the conections to your battery. then if it still dose it check the power wire to your starter. it may have loosend up a little. most of the time a single click will just be a bad conection. check for coroshion.