This topic contains 1 reply, has 2 voices, and was last updated by 
Rahul Jones 1 month, 3 weeks ago.
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Topic
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Hello all, I have a 1988 Jeep Comanche (MJ) using the 4.0L inline 6 engine on the automatic trans.
I just reinstalled the engine after I rebuilt it. After fixing a misfire problem, and readjusting the indexing on the distributor it is now running smooth and cool. it does get to operating temp.
How ever if I go drive it, park, and shut it down; it won’t crank or if it does it’s very slow and sometimes it hydrolocks. If I let it cool down for a bit it will start. sometimes that restart I am not ruling out a possible battery/starter problem.
Not familiar with these multi point “renix” jeeps of the late 80s. But since I have a 1990 wrangler I do have a couple scanners capable of reading them.
Any input is greatly appreciated!
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I would suspect the starter motor or battery. I recently had a battery that would pass the test when cold but failed the test when it was hot. I was almost ready to replace the starter as the engine would crank slowly when hot but was fine when cold.
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