94 Sahara 4.0 manual won't start

Sethro41

New Member
Joined
Aug 25, 2025
Messages
2
Location
Michigan
I've changed the Starter, Starter fuse relay, and the ignition cylinder. No dash lights however sometimes they come on briefly. No clicking when the ignition is turned and if the lights did come on they go off immediately upon turning key. Not sure what my next step is to check. Any help or thoughts are welcome. Thanks.
 
Check the battery, battery cables. Try a jump box or jump starting from another vehicle.

Swap the ASD relay with the horn relay.

Check the ASD fuse.

Ignition switch.
 
Replace the positive and negative battery cables. Simple and cheap. I had the same issue several years ago. Even though the cables looked good, the negative that grounds to the engine block was corroded inside about midway. After replacing, it started right up. My curiosity, as always, got to me and I sliced open both to find the negative cable damaged with corrosion inside

When you correct your problem, could you please post back what fixed it.

This helps others that may have the same issue and looking for answers.

Thanks, good luck
 
Last edited:
Thanks for the insight! I replaced the ignition switch and checked all of those fuses and relays Still nothing. Then I replaced the negative battery cord and terminal connector. Boom! That was it. Just like you had said the wire looked fine but somewhere inside had failed. Thanks again to the both of you!