2008 Jeep Wrangler (JK) Rubicon 6 Cyl 3.80L
All dash lights come on but NO CRANK
Hello! Please forgive me if I am posting this in the wrong section. I own a small dealership and we have a 2008 Jeep Rubicon automatic that has us all stumped and we have tried everything we know! I drove the Jeep several hundred miles after purchasing to sell with no issues. I had a new driveshaft put in and took it for a test drive and after I switched the ignition off it never started again....That was 3 months ago. All the dash lights come on as normal and everything works when in the ACC position, but once you turn the key to crank all you hear is a thump at the gear shift and nothing. (You also hear the thump if just pressing the brake and not trying to crank) We noticed the starter wire fell on the exhaust and was burned, but even when we repaired that, still the same thing. So we carried it to the dealership and they said the wire shorted the TIPM and wanted to charge $1,800 to replace. Below is a list of everything that has been done with no resolve!
Diagnostic work on these systems is pretty straightforward. You should always check all the powers and grounds to the TIPM then check the connections as well as the inputs and outputs.