86 cherokee 2.8L V6
- Thread starter Beatingu
- Start date
greg92jeepxj
Official Supporter
Good point about about checking the distributor rotation , Chevy distributors were good for seizing up due to poor lubrication , engine oil did not always make it to distributor adequately .
you mentioned changing the ignition coil , you may have a faulty ignition module . Also , inside the distributor , there is a pick up coil . A two wire plug attaches to the ignition module . Unplug the pick up coil and attach the leads of an ohm meter to the plug connections and have someone crank the engine. You should see a steady on and off reading from the ohm meter. If intermittant or not at all , will need to be replaced. Also , see if you are getting a voltage reading from the positive wire that feeds the ignition module. See if the auto parts store can do a proper test to the ignition module. It may take several tests to get the module to proper temperature for the internal contact to open and close. The pick up provides a spark to signal the module to open and close just as breaker points used to do in old school breaker point ignition systems. It would be a good idea to double check the ohm reading of the new ignition coil to make certain the part is good . Stranger things have happened. Always test a new part after it is assembled to verify it works . In the unlikely event the jeep still won't start , you want to know the parts(s) you replaced are good and are not the cause of it still not starting. As long as a replacement module has the proper grease ( white titanium diode greaase , radio shack ) , it will not overheat and burn up providing it is a quality part.
you mentioned changing the ignition coil , you may have a faulty ignition module . Also , inside the distributor , there is a pick up coil . A two wire plug attaches to the ignition module . Unplug the pick up coil and attach the leads of an ohm meter to the plug connections and have someone crank the engine. You should see a steady on and off reading from the ohm meter. If intermittant or not at all , will need to be replaced. Also , see if you are getting a voltage reading from the positive wire that feeds the ignition module. See if the auto parts store can do a proper test to the ignition module. It may take several tests to get the module to proper temperature for the internal contact to open and close. The pick up provides a spark to signal the module to open and close just as breaker points used to do in old school breaker point ignition systems. It would be a good idea to double check the ohm reading of the new ignition coil to make certain the part is good . Stranger things have happened. Always test a new part after it is assembled to verify it works . In the unlikely event the jeep still won't start , you want to know the parts(s) you replaced are good and are not the cause of it still not starting. As long as a replacement module has the proper grease ( white titanium diode greaase , radio shack ) , it will not overheat and burn up providing it is a quality part.
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