Scalped Posted July 20, 2019 Share Posted July 20, 2019 91 comanche 2.5L Symptoms indicate bad ICM.. Bought the part and I can't locate it on the truck... Repair book says near passenger shock tower( nope) Auto Zone says on fire wall ( Nope) Can anyone please help me? Thanks Steve Link to comment Share on other sites More sharing options...
Jeep Driver Posted July 20, 2019 Share Posted July 20, 2019 43 minutes ago, Scalped said: 91 comanche 2.5L Symptoms indicate bad ICM.. Bought the part and I can't locate it on the truck... Repair book says near passenger shock tower( nope) Auto Zone says on fire wall ( Nope) Can anyone please help me? Thanks Steve Can you post a pic of what you bought? Link to comment Share on other sites More sharing options...
jeeptec1 Posted July 20, 2019 Share Posted July 20, 2019 The 91 Comanche doesn’t have an ignition control module. It does have a pcm powertrain control module. It is or should be along the left inner fender and air cleaner housing. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Scalped Posted July 20, 2019 Author Share Posted July 20, 2019 Thanks for everyones help! Link to comment Share on other sites More sharing options...
Scalped Posted July 20, 2019 Author Share Posted July 20, 2019 11 hours ago, jeeptec1 said: The 91 Comanche doesn’t have an ignition control module. It does have a pcm powertrain control module. It is or should be along the left inner fender and air cleaner housing. If you don't mind looking at my symptoms and telling me if I'm on the right track... Sometimes runs perfect then without warning it stalls or bucks and jumps missing or gos dead.. usually upon start of excelleration but not always. Thanks Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
jeeptec1 Posted July 20, 2019 Share Posted July 20, 2019 Do you have a check engine light/ service engine message? Common failures on this is the crank sensor. Located on the left top of the bell housing. The cam sensor located in the distributor. Fuel pump. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Scalped Posted July 20, 2019 Author Share Posted July 20, 2019 light is on Link to comment Share on other sites More sharing options...
jeeptec1 Posted July 20, 2019 Share Posted July 20, 2019 Cycle the key on off on off on leave it on. Count the sequence of blinks that will give you a fault code. There maybe a more detailed procedure on YouTube on reading the codes. Then do a google search for the codes.Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Scalped Posted July 20, 2019 Author Share Posted July 20, 2019 thx Link to comment Share on other sites More sharing options...
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