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Jeep won't start, no fuel pressure, help!

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Old Aug 8, 2010 | 07:36 PM
  #1  
BobShetler's Avatar
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From: Ohio
Year: 1998
Model: Grand Cherokee
Engine: V6 4.0 L
Default Jeep won't start, no fuel pressure, help!

- New fuel pump
- New plugs and wires
- New distributor cap
- New coil
- No fuel pressure
- No power to the pump
- Fuel gauge not working
- Fuses checked and replaced
- Battery is good, cranks but won't fire
- No spark from coil to distributor cap

We know this is a fuel problem and the engine is not getting any fuel, completely lost on the fact that the pump has no power (probed the plug while replacing the pump) and don't know where to go from there because the battery is working fine. Turning the key to the on position doesn't start the pump at all. Any ideas on what to check? Also, last month it took longer to start than normal, that's why we replaced all we did thinking it was the problem. Is there an emergency killswitch possibly? Fuel pressure regulator bad maybe?

Thanks
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Old Aug 8, 2010 | 08:32 PM
  #2  
72gremlinkid's Avatar
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Joined: Jun 2009
Posts: 201
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Model: Cherokee
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Its your Crank Shaft Position Sensor that goes through the bellhousing of trans on driver side. You can follow the wire for it that goes to pass side against firewall. Little hard to get to. Mine went out recently too and it wouldnt turn the fuel pump on wouldnt get spark and the gauges wouldnt come on and obd2 connection didnt work. Sorry to see all the parts you replaced on trying to fix this problem.. good luck P.S. welcome to the forum too! hope you stay after you fix your problem very helpful site
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Old Aug 8, 2010 | 11:15 PM
  #3  
firstime00XJ's Avatar
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From: MI
Year: 2000
Model: Cherokee
Engine: 4.0 I6
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x2
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Old Aug 9, 2010 | 05:00 PM
  #4  
BobShetler's Avatar
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From: Ohio
Year: 1998
Model: Grand Cherokee
Engine: V6 4.0 L
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Yep, that was the problem, starts up just fine now.

Thanks guys,
Bob
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Old Aug 11, 2010 | 04:25 PM
  #5  
levi1979's Avatar
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From: Bim,WV
Year: 2002
Model: Cherokee
Engine: power tech v6 4.0
Default try this

turn your jeep on until it displays the number of miles, then turn it off and keep doing this untiil shows the codes letting you no what the problem is. hope this helps you.
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Old Aug 11, 2010 | 05:16 PM
  #6  
Bustedback's Avatar
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Posts: 12,367
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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Originally Posted by levi1979
turn your jeep on until it displays the number of miles, then turn it off and keep doing this untiil shows the codes letting you no what the problem is. hope this helps you.
Its been fixed for two day now, I guess his time machine is working fine.
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