11 navigator stalling out

Discussion in '3rd Gen - 2007 - 2017' started by 69charged, Feb 5, 2018.

  1. JExpedition07

    JExpedition07 Elite Member Supporting Member

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    When I killed a coil over it sputtered at idle and would seem fine if I stepped on it, so don’t rule that out. If it’s a leaky injector replace it ASAP it can cause major problems or grenade the motor all together. Do you have to hold the key and crank a lot to get it to start?
     
  2. 69charged

    69charged Member

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    Yeah I hear ya. That happened to me on my v10 back when. Because fords have the one touch key, I turn it once and leave it crank till it goes. Which, sometimes is around 10 seconds. It smells like raw unburnt fuel after it starts.
     
  3. JExpedition07

    JExpedition07 Elite Member Supporting Member

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    Start looking to your injectors in case. sounds awfully similar to what another user experienced before blowing the motor from starting flooded too many times. Still could be something electrical but be cautious.
     
    Last edited: Feb 12, 2018
  4. 1955moose

    1955moose Full Access Members

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    Are the 02 sensors the only codes that came up? You should be getting codes for suspect cylinder/cylinders that are leaking. I agree with other member, disconnect any computer tune chips or whatever. They can cause more driveability issues than you can imagine. I helped a young mechanic last week that was having a no start on his 93mustang gt. I gave him quite a few things to check. He reported back last week, his issue was the tuning chip on his computer shorted out, and took ecu with it. He popped in a new ecu sans chip, and dittala whoopah, fired right up. Do a fuel pressure test, run full dtc codes, and report back.

    Sent from my N9131 using Tapatalk
     
  5. 69charged

    69charged Member

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    I'll take the tune out this week when I get time.
    The only codes ever have been for the O2 sensors. Since replacing all 4, nothing has come up again.
    Clarence
     
  6. 1955moose

    1955moose Full Access Members

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    A lot of driveability issues on these vehicles don't trip a code, or the appropriate code. A leaky injector will cause all kinds of grief, especially on start up. Fuel building up on top of a piston, would be a tough job for that spark plug to fire, not to mention all the excess fuel making its way past your piston rings, washing away oil lubrication. Surprised your computer didn't throw a code for that bank, but then again we're putting the cart before the horse. When they or you diagnose fuel pressure/trim, and all diagnostic, your issue should pop up, always does, if done proper.

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  7. Adieu

    Adieu Full Access Members

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    Somewhat similar issue

    '12 Gator

    No tune no codes

    Popped up after changing a dying battery, dunno if related


    Did you resolve your problem?
     
  8. coolzzy

    coolzzy Full Access Members

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    Have you removed fuse 27 under the hood in the fuse panel and inspected the socket? There is a tsb for the socket melting (fuel pump) and a relocation kit available for a few bucks. It's a 20 minute job on the F150, should be the same on the expy. It will cause a crank no start situation. And in the case of complete fuse socket failure, vehicle will shut off while driving with no warning.
     
  9. 99WhiteC5Coupe

    99WhiteC5Coupe Full Access Members

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