SOURCE: no 8 volt supply from pcm
You likely already checked this but how about a broken timing belt. If the cams aren't turning the cam sensor isn't working and the pcm won't fire the plugs.
SOURCE: Car won't start. There is no spark at the plugs. I
check your fuses if they are all good ,check all the ground wires on the engine make sure they are all making good connections,and if still not starting then its a very good chance that your PCM (computer) is bad. you can buy a used one for little money at a salvage yard.
Testimonial: "Engine ground was broke!"
SOURCE: jeep wrangler 2.5 standerd turns
Is it an automatic transmission?
Have you try to start the Wrangler in Neutral.
On automatic transmission there is a neural safety switch.
When it's not send the correct gate position signal (P R N D... ) to the ECU not energize import relay like ASD.
Check for loose linkage to the transmission. + lube linkage with white Lithium grease spray.
Check for loose wiring to the neutral safety switch.
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