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    Re: Vent Control Solenoid/Evap Solenoid

    As a follow up to two problems that have plagued me for over a year in the case of low fuel pressure more than two years.

    Few years ago I was having trouble starting, had to do the double key on...
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    Re: Fuel Injector Mod

    Thanks
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    Fuel Injector Mod

    How does the computer know when you modify the fuel injectors from one to four jets? Does it matter?
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    780

    Re: Bad Fuel Pump?

    Removed old fuel pump serviced it and put it back in. Fuel pressure went from 50 to 15 so that was a bust.Bit the bullet and bought new pump again. This one is working fine. After original pump...
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    Re: Bad Fuel Pump?

    Thank You. Your rapid response is appreciated.
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    Bad Fuel Pump?

    Suspected bad "NEW" fuel pump. Have to prime pump for start,pressure drops to zero immediately upon key off.(suspect bad anti-backflow valve in pump assembly) Removed fuel pump from tank and and blew...
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    Vent Control Solenoid/Evap Solenoid

    Where is the vent control solenoid located in my 1999 4.0 Cherokee and is the evap. solenoid a separate part or are they the same thing. I know about the one in the engine compartment next to the...
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    Re: Easy permanent fuel pressure gauge

    Thanks Blue Dragon436, That sounds reasonable.
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    Easy permanent fuel pressure gauge

    Why the warning about Teflon tape?
  10. Thread: Part ID

    by Klaatu55
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    Re: Part ID

    Thanks,Double checked,its not going to canister,looks sorta like one close to it that is running from canister to evap pump.Thanks again.
  11. Thread: Part ID

    by Klaatu55
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    Part ID

    Anyone know what this does? It runs back to my charcoal canister. (Inside Blue Circle.)
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    Re: Fuel Pressure Still Leaking Down

    I took the gas tank down, and with a funnel I poured gas down the gas line,(the one with the click fitting) The gas went into the gas tank ,Isn't the anti-back flow suppose to prevent this. Is it...
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    Re: Good Crank, No Start

    Good spark before and at each individual plug. After extra ling crank it finally caught,I ran a few cans of gas treatment through and now it runs. Have no real idea what is diferent,maybe it was bad...
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    Re: Slow /Very SlowFill Up

    My tank does not have the same setup as illustration, It has a pressure line, but only has a line to the rollover. Is this the fuel vapor return? Or does the return stop with the cannister? Another...
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    Re: Slow /Very SlowFill Up

    The illustration didn't come through, I'll try to send it again.
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    Slow /Very SlowFill Up

    I have a 1999 Cherokee 4.0. Evap. switch and pump is in engine compartment passenger side.Charcoal cannister is under car by back wheels.in front of gas tank.


    I still have to fill up very...
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    Re: Good Crank, No Start

    I kept cranking and finally got jeep to start. It caught and blew out black soot smelling like starting fluid (ether) I did have to play with gas pedal a little bit. Once it caught, it idled without...
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    Re: Good Crank, No Start

    Yes thank you,Charlie Foxtrot,that verifies that. I can crank strong so may not be alarm, car never had factory alarm to my knowledge. I was doing the two key thing because fuel pressure went from...
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    Re: Good Crank, No Start

    I will check further,Shouldn't starting fluid have any effect, along with spark?What does the roll over relay cut off?
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    Re: Good Crank, No Start

    Thanks for your prompt response ,Yes I've had a Viper 5901 since 2000. Alarm, Doorlock,unlock and remote start. Other than changing remotes due to dropping and drowning. Haven't had any trouble....
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    Good Crank, No Start

    I have a problem that I hope someone can help me with. 1999 jeep Cherokee 4.0 Started up and drove around town normally ,no hesitation, misses or backfires. Cut jeep off ,sat in driveway a few hours...
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    Re: Fuel Pressure Still Leaking Down

    Thanks, When I figure it out i will report back.
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    Re: Fuel Pressure Still Leaking Down

    I replaced the entire pump assembly.(pump,regulator,check valve,float,potentiometer) First with an Airtex, than later a Bosch. I thought the Airtex was defective,apparently it was not.
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    Re: Fuel Pressure Still Leaking Down

    Are there any components between the fuel pressure regulator (part of the fuel pump) and the fuel injectors, other then the continuous fuel line, that could provide an immediate pressure leak....
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    Re: Fuel Pressure Still Leaking Down

    Good Information: Thanks to NiteDog -Cherokee Talk
    http://ka3tfh.com/JeepInfo/XJ/3503856-Jeep-XJ-2000-25-Emission-Control-Systems.pdf
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