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My Jeep died in my drive way, my diagnosis

FrancFFrancF Member Posts: 35,279 ✭✭✭
edited January 2017 in General Discussion
Fuel pump- acted like it ran out of gas. Cranks over great, but no pop and fart. So it dies half way out in the street, dam that thing is a pig to push![:D]
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Comments

  • Horse Plains DrifterHorse Plains Drifter Forums Admins, Member, Moderator Posts: 40,222 ***** Forums Admin
    edited November -1
    Likely, but there should be a fuel pump relay(under the hood?). Check that first.
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  • montanajoemontanajoe Forums Admins, Member, Moderator Posts: 60,206 ******
    edited November -1
    Hope its a easy fix. Good luck. let us know what it turns out being for sure.
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  • CoolhandLukeCoolhandLuke Member Posts: 7,826 ✭✭✭
    edited November -1
    What model year ?
    We have to fight so we can run away.
    Capt. Jack Sparrow.
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  • redneckandyredneckandy Member Posts: 9,716 ✭✭✭✭
    edited November -1
    Or crank sensor...
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  • HandLoadHandLoad Member Posts: 15,998 ✭
    edited November -1
    Water frozen in fuel line?
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  • FrancFFrancF Member Posts: 35,279 ✭✭✭
    edited November -1
    2006 Rubicon
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  • notnownotnow Member Posts: 1,858 ✭✭✭
    edited November -1
    Borrow a fuel pressure gauge and find out.
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  • 1911a1-fan1911a1-fan Member Posts: 51,193 ✭✭
    edited November -1
    easy way to help narrow it down, or at least a place to start

    use starting fluid, if it stays running, you know it is fuel pump,sending unit, electrical or filter related
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  • grumpygygrumpygy Member Posts: 48,464 ✭✭✭
    edited November -1
    With these new thing it will be a Pain to fix trust me. Could be fuel pump. Could be the brain. could just be a sensor.
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  • CoolhandLukeCoolhandLuke Member Posts: 7,826 ✭✭✭
    edited November -1
    Originally posted by FrancF
    2006 Rubicon

    [/quote

    I own the exact same vehicle for a few months now and learned a little about them.

    Check the Crank and Cam shaft sensors, the throttle position sensor can cause problems too, I also changed the fuel injection air control valve, check for spark from coil bar it's notorious for failure.

    Ps My jeep's first failure at 52K was the fuel pump.

    Please let us know what caused the problem, Good luck.
    We have to fight so we can run away.
    Capt. Jack Sparrow.
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  • GuvamintCheeseGuvamintCheese Member Posts: 38,932 ✭
    edited November -1
    Sounds like the flip flop relay overload device.
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  • Laredo LeftyLaredo Lefty Member Posts: 13,451 ✭✭✭
    edited November -1
    I had the throttle position sensor go out on my Durango a couple years ago, same symptom.

    Has the car been bumped? Check to see if the emergency fuel shut off has been tripped.
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  • Tailgunner1954Tailgunner1954 Member Posts: 7,734 ✭✭
    edited November -1
    Problem # 1, it's a Jeep.
    Remember that "J" is pronounced "H", and you'll understand.
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  • hillbillehillbille Member Posts: 14,456 ✭✭✭✭
    edited November -1
    when you first turn the key on you should be able to hear it "whine" as it pumps up. turn everything off and listen for the pump. On my silverado the ac relay and the fuel relay were interchangeable, same amps, flip flop them first, then listen again for the pump.
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  • kevind6kevind6 Member Posts: 208 ✭✭✭
    edited November -1
    quote:Originally posted by 1911a1-fan
    easy way to help narrow it down, or at least a place to start

    use starting fluid, if it stays running, you know it is fuel pump,sending unit, electrical or filter related


    ^^^^^
    This
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  • pwilliepwillie Member Posts: 20,253 ✭✭✭
    edited November -1
    take it to a mechanic that knows Jeeps..[:o)]
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  • CoolhandLukeCoolhandLuke Member Posts: 7,826 ✭✭✭
    edited November -1
    Did you fix it ? What was the problem ?
    We have to fight so we can run away.
    Capt. Jack Sparrow.
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  • LesWVaLesWVa Member Posts: 10,490 ✭✭
    edited November -1
    Rubicon.. Start with the simple.

    Remove the plastic cap that cover the fuel pressure relief/purge valve on the fuel rail of the engine.

    Have someone turn the key on and off a few times (without trying to start the engine) then leave it in the on position.

    Press the valve core (looks like a valve core on a tire).

    Got fuel?

    No = Fuel pump.

    Yes = Sensors (could be a number of them from the TPS to the fuel regulator, I will not go into that).

    Hardest thing about the Rubicon. The fuel tank must be dropped in order to change the pump.

    Tip on something I learned about electric fuel pumps (Especially from NAPA). If you connect the power leads and pour about 2 oz of oil into the inlet while it runs to lubricate the pumps bearings, vanes and internal parts. They seem to do much better than just starting out running straight gasoline through them. I have not had one to lock up yet since I started doing it. No fun at all to pay $150-$200 for a fuel pump only to have it lock up 3 seconds after you worked your butt off to install it. Then have to go pay for another one because it is an electrical part and can not be return for refund.
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