I need help with a Jeep Wrangler, will start sometimes, sometimes not. Changed starter, no help, battery checks good, ignition switch seems to be working. Can start with screwdriver to starter???? help???
Thanks SOOO much,
-linda
Hi There Linda,
When you turn the key to start and the headlights and other accessories go OUT then you have a bad battery cable connection. If the lights dim low, you could either have a bad battery or a bad starter motor…or a problem with the wiring to the starter, although that is rare.
If the headlights stay nice and bright AS you crank the key to the start position, you might have a bad neutral safety switch on the transmission or you could have an alarm problem or ignition switch or wiring problem.
I always start this diagnosis with cleaning the battery cables, making sure they are TIGHT, you should not be able to move them on the battery with your bare hands. Then I do an standard electrical test
1. Load test battery
2. Check starter voltage draw
3. Check powers and grounds to starter motor
Here is more on the subject
Why Wont My Car Start
Hope this helps,
Blessings,
Austin Davis