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if there are any smart people out there- help me


 
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amys
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Joined: 17 Feb 2006
Location: SEATTLE

PostPosted: Fri Feb 17, 2006 10:19 pm    Post subject: if there are any smart people out there- help me Reply with quote

my 90 jeep cherokee limited edition will not start. the starter is cranking, the alternator is working. I have battery power. I am getting output from the ignition coil to the distributor, but no output from the distributor itself. I just installed a new distibutor earlier, and no luck. still no spark from the distributor. it's almost like all the power is getting in there, but vanishing somewhere. any suggestions would be greatly appreciated. taking the bus at 6:00 am when it's 15 degrees is really starting to become a problem. thanks to all who reply, i have lots of info and other various information to share about fixing Cherokees, as I seem to break down every few months, and teach myself how to fix things.
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LicKwiD
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Joined: 23 Jan 2006
Location: Bethlehem

PostPosted: Fri Feb 17, 2006 10:29 pm    Post subject: reply Reply with quote

Hello, just to make sure, did you replace the whole dizzy? or just the dizzy cap? anywho, ive already given my .02 on this in another thread, sorry dont wanna retype it.

http://jeephorizons.com/phpbb/viewtopic.php?t=7049&highlight=
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93 XJ 4x4 - Winter Beater
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amys
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Joined: 17 Feb 2006
Location: SEATTLE

PostPosted: Sat Feb 18, 2006 12:04 am    Post subject: Reply with quote

Yes, i replaced the cap and the distibutor. all brand new. in the past, the wire from the coil to the distributor was an issue - tempermental. i changed that out, and have had a good run for the past few months with it. i did all the ohm testing, and noticed that the readings were a bit low, but still should be enough to make the car turn over. the altenator and starter are working just fine. could it have anything to do with the control module? i changed that out about a year ago, but went from the arizona climate to rainy seattle. im at a loss for an explaination. im thinking it could be a fuse, or a line coming off the ignition switch that is not in synch with the computer.
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amy s
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LicKwiD
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Joined: 23 Jan 2006
Location: Bethlehem

PostPosted: Sat Feb 18, 2006 3:32 pm    Post subject: Reply with quote

amys wrote:
Yes, i replaced the cap and the distibutor. all brand new. in the past, the wire from the coil to the distributor was an issue - tempermental. i changed that out, and have had a good run for the past few months with it. i did all the ohm testing, and noticed that the readings were a bit low, but still should be enough to make the car turn over. the altenator and starter are working just fine. could it have anything to do with the control module? i changed that out about a year ago, but went from the arizona climate to rainy seattle. im at a loss for an explaination. im thinking it could be a fuse, or a line coming off the ignition switch that is not in synch with the computer.


make sure your ground connections are all tight, and have you had the battery tested under load? or just using an ohm meter? advanced auto or autozone will do a free battery test, and tell you if its working well or not. i had similar starting problems, turns out in the long run, even after using an ohm meter for readings, the batt was still not holding charge. replaced and fixed issue promptly. low readings on the coil? was it between the .06 and .1 ohm area? any lower i would deff replace the coil, its $75 or somewhere around there. but if u replaced with a new dizzy, that should have come with a new coil, cap, rotor, icm, also. all your plug wires are making contact? it seems like they always need one extra push on them to click in. did you try cranking while grounding a spark plug? do you get spark there? if so then ur fuel is ur issue.

starting at the pump, to filter, to fuel rail, inj, elec connec at the inj and others.
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JeepinNH
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Joined: 13 Sep 2005
Location: New Hampshire

PostPosted: Sat Feb 18, 2006 3:45 pm    Post subject: no start Reply with quote

Sounds like your crank position sensor or the other position sensor in the distributor may have died. Get a repair manual that describes how to test the sensors. These sensors are used by the computer to tell if the motor is turning so no sensor no spark. This is a typical failure as Jeep's get older but pretty easy to diagnose. Good luck.
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Mike

Present: 99 Cherokee
Past: 86, 87 Cherokee; 94 Grand Cherokee
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