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hard to start cranks over alot before it starts

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Old Jan 3, 2011 | 09:52 AM
  #1  
white crow's Avatar
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Joined: Oct 2010
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From: long island NY
Year: 1998
Model: Cherokee
Engine: 4.0
Default hard to start cranks over alot before it starts

hard to start cranks over alot before it starts and if i cycle the key like 3 times it starts right up any ideas ? fule filter ,fule pump ?
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Old Jan 3, 2011 | 09:57 AM
  #2  
freegdr's Avatar
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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first thing to do would have it checked for codes
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Old Jan 3, 2011 | 10:08 AM
  #3  
ezab's Avatar
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From: Michigan
Year: 1998
Model: Cherokee
Engine: 4.0
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And then check your fuel pressure.
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Old Jan 3, 2011 | 10:09 AM
  #4  
caged's Avatar
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From: Northern Ontario, Canada
Year: 1990, 1999, 2000
Model: Cherokee
Engine: 4.0
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probably the check valve. it's letting the fuel run back into the tank.
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Old Jan 3, 2011 | 10:09 AM
  #5  
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From: Michigan
Year: 1998
Model: Cherokee
Engine: 4.0
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Fuel Pressure


Engine at curb idle 338 ±14 kPa (49.2 ±5 psi)
Fuel Pressure Drop (pump not engaged) Not fall below 30 psi for 5 minutes
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Old Jan 3, 2011 | 10:33 AM
  #6  
huntingman2706217's Avatar
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From: Griffin, G.A.
Year: 1990
Model: Comanche
Engine: 4.0 I6
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Check valves built into the fuel pump... so probly looking at buying a new one if you can't find a fuel leak anywere to let it bleed down...
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