Quote:
If you do, then the problem is your starter. If you do not, then you have a problem with control electronics (NSS or starter relay), wiring, cables leading to the starter or grounds. Start working your way back from the starter into the engine bay to the battery.
Wouldn't hurt to freshen all engine grounds as it is a common source of gremlins and should be done periodically anyways. Can't tell much by looking at them. Disassemble, clean thoroughly then reassemble.
Good luck and keep us posted!
Originally Posted by tjwalker
Next time it does this, get a meter and with the key in the "ON" position, measure the available voltage directly at the starter. You should have approximately full battery voltage there.If you do, then the problem is your starter. If you do not, then you have a problem with control electronics (NSS or starter relay), wiring, cables leading to the starter or grounds. Start working your way back from the starter into the engine bay to the battery.
Wouldn't hurt to freshen all engine grounds as it is a common source of gremlins and should be done periodically anyways. Can't tell much by looking at them. Disassemble, clean thoroughly then reassemble.
Good luck and keep us posted!
okay, my multimeter has arrived. How do I properly measure the "available voltage directly at the starter"? Any advice... gonna start playing around with it this evening to diagnose. Will be cleaning up grounds as well... once it's above 10 degrees!
let the Jeep sit all night. at 7:45am it was 12 degrees F outside. Battery was reading 12.53v. Same issue, no start. Dash lights all work, no clicking, no cranking, just quiet... Will start here to diagnose, tomorrow morning:
= Bleepin Jeep explanation of how to test starter.
Will work my way backwards from there.
= Bleepin Jeep explanation of how to test starter.
Will work my way backwards from there.