dasbrick Posted February 25, 2010 Share Posted February 25, 2010 So. Trying to chase down this performance issue with the MJ. 87 4.0 BA-10/5 The First and Second gear run fine, speed up fine, third gear is fine, but the fourth gear and ESPECIALLY the fifth gear just dog. Is this a fuel issue, or is this a transmission issue? I am a volunteer firefighter, and I need my speed. Quote Link to comment Share on other sites More sharing options...
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