1993 jeep 4.0 floods at idle


  #1  
Old 03-11-07, 09:41 AM
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1993 jeep 4.0 floods at idle

i just bought a jeep cherokee from a friend, he's worked on it for quite awhile trying to solve this problem, has new, distributor, o2 sensor, coolant sensor, crank sensor, ambient air sensor, pcm, cat. conv., tps reads .6-.7 at idle and 4.7 wot. map reads good too. it's had to start when cold, possibly because the plugs keep fowling, when it does start, runs great on the road, pull up to a stop it floods and dies but will restart, if you just start it and let it idle, after about 3-4 min. it'll start to miss , flood out and die. any ideas would be appreciated
 
  #2  
Old 03-13-07, 08:32 PM
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I would lean toward leaky injectors. I would run it, shut it off, let it sit for about five minutes and click the schrader valve on the fuel rail to see if it's held the pressure.
 
  #3  
Old 03-19-07, 09:28 AM
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yes check fuel presure and for injector leak down when enging shuts down fuel presure should hold if not try and locate bad injector and replace
 
 

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