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LOW RPMS

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Old Oct 14, 2011 | 07:33 PM
  #1  
droark's Avatar
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From: Virginia
Year: 1996
Model: Cherokee
Engine: 4.0
Default LOW RPMS

My 96 sport acts like it doesn't want to start but does an when I'm at at stop the rpms are almost at 0. Just did a tune up on an still same. Any ideas??
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Old Oct 14, 2011 | 07:43 PM
  #2  
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From: Warrenton MO
Year: 2000
Model: Cherokee
Engine: 4.7L I6
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i had a similar problem.

crank positioning sensor
idle air sensor
cam positioning sensor
distributor.

i changed just about every sensor and even my fuelpump before i took 4 minutes to change the distributor and fixed everything.
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Old Oct 14, 2011 | 07:55 PM
  #3  
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From: Virginia
Year: 1996
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How much was ur distributer
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Old Oct 14, 2011 | 08:09 PM
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Year: 99
Model: Cherokee
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o2 sensors maybe? What about fuel delivery? Do a test at the rail and see what ya get.
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Old Oct 14, 2011 | 08:17 PM
  #5  
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Year: 1996
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Haven't really tried anything other than checking my plug wires an firing order. Check engine light came on an code said cylinder 1 misfire any ideas about that that?

Last edited by droark; Oct 14, 2011 at 08:24 PM.
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Old Oct 14, 2011 | 08:30 PM
  #6  
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From: West Texas
Year: 1991
Model: Cherokee
Engine: 4.0 L
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wires.

check them, ohm them out. click on plugs ok? plugs, worn out? (mine after 75k AHENH read .050) whoops!

should be .035 on 4.0L as far as i can smell........(heeeeeeyyyy!)

that guy is sauced. don listen!



cpnwrench

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Old Oct 14, 2011 | 08:37 PM
  #7  
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From: Warrenton MO
Year: 2000
Model: Cherokee
Engine: 4.7L I6
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i have coil packs so its probably not the same. (2000-2001)

i also have a parts jeep so it was free.
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Old Oct 14, 2011 | 08:40 PM
  #8  
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Year: 1996
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Plugs wires rotor button distributer cap all new just put on early this week an I made sure they all clicked in an still the same
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Old Oct 14, 2011 | 08:45 PM
  #9  
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From: Warrenton MO
Year: 2000
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Engine: 4.7L I6
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isnt the cam positioning sensor inside of that assembly?
try crankshaft positioning sensor. cheap and takes 15 minutes

also try the fuel filter.
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Old Oct 14, 2011 | 09:00 PM
  #10  
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From: Virginia
Year: 1996
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Ok u think it could be the idle control
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Old Oct 14, 2011 | 09:03 PM
  #11  
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From: Warrenton MO
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could be... i had spare sensors so i changed em all lol i dunno how much they cost.

theres the idle air controller. it could be very dirty and its housing could be as well... i was told to clean it since i have a lot of oil blow-by. ended up helping even though that wasnt my cause. could be yours though.
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Old Oct 14, 2011 | 09:12 PM
  #12  
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Year: 1996
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K thanks I give all that a try
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