If the injectors do not fire, fuel in the rail does not matter since it's not getting gas into the engine. Look to see if your check engine light comes on, when you turn on the ignition. If it does not, then your ecu computer is in need of repair since it's not sending either a spark or fuel injector signal to fire up your jeep.
SOURCE: 1993 JEEP GRAND CHEROKEE LAREDO- TRUCK WONT
OK...I have a 93 outside...one diagram I have shows an ignition module next to coil...but there is none on mine, (4.0 engine)
Two items to check are crank sensor and cam sensor inside distributor. Test procedure can be found in just about any manual including haynes.
You will need a decent volt/ohm meter to do testing. You can also check codes by turning ignition switch on/off three times, leaving it on the third time. Check engine will flash code #'s (ex: one flash, pause two flashes= the number twelve.then followed by a longer pause then another set of flashes etc.)
SOURCE: 1995 Jeep YJ Wrangler
Check the coolant sensor, cam and crank sensor and make sure they are all plugged in.
SOURCE: 1992 jeep yj will not turn over
Try jumping the solenoid,pull the actuator wire off the solenoid(the small one)This will engage the starter so make sure your in nuetral or park,run a wire from the solenoid actuator to the positive battery post,if the starter engages your ignition switch or starter relay have become faulty,if the starter does'nt engage the solenoid has gone bad.Post back if you need more help.
SOURCE: 1987 Jeep YJ Hard to start hot
Sounds like a bad distributor control module. You blew-up your muffler because there was no spark.....lots of fuel in the exhaust....then an intremittent spark......BOOM!
Once the module cools off, it works again, because the crack in the circuit board re-connects....until it gets hot again, and opens the circuit........no more spark. Replace the module.
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