Antonio_lopez09 Posted February 13, 2013 Share Posted February 13, 2013 Please help. I've got an 89 Jeep Comanche that was driving fine yesterday and today when i went to start it; it would start and stay on if i kept the key in the start position, once I let go it would stall out. hope someone can help Link to comment Share on other sites More sharing options...
gogmorgo Posted February 13, 2013 Share Posted February 13, 2013 It would be helpful to know a bit more about your MJ. Which engine for a start. There are a couple things I can think of that would cause this. Either the engine isn't making enough power to stay running without the help of the starter, or else not everything is turning on in the on position. (i.e. fuel, spark, etc.) Can you hear the fuel pump prime when you turn the key to "on"? Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted February 13, 2013 Share Posted February 13, 2013 If its the 4.0 it sounds to be either a fuel pump issue or maybe (hopefully) it your fuel pump ballast resistor. Link to comment Share on other sites More sharing options...
maddzz1 Posted February 14, 2013 Share Posted February 14, 2013 I had this problem when i got mine. It was one of the wires near the fusible links behind the battery. I think it was one that went to the starter relay or whatever that metal box thing is called. Link to comment Share on other sites More sharing options...
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