0regon Posted August 16 Share Posted August 16 Hey y'all I'm struggling to diagnose a no start when it's "cold". My MJ runs great (thanks cruiser54!) and starts fine unless it's been sitting in the cold overnight. When it fails to start it cranks strong but won't fire. Then I drive my XJ to work and once I get home I go to troubleshoot the MJ and it starts up first try. 88 MJ 4.0 ax15 mp231 stock renix everything with a 98 block and head. Any ideas? Oh and I can hear the fuel pump prime when it doesn't start.. Link to comment Share on other sites More sharing options...
Pete M Posted 10 hours ago Share Posted 10 hours ago did this question get answered? I saw it in another forum but couldn't find a corresponding thread in tech. Link to comment Share on other sites More sharing options...
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