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Thread: Died at the Drive-thru...

  1. #1
    Join Date
    Jun 2012
    Location
    Old Town, Maine
    Posts
    217

    Default Died at the Drive-thru...

    My wife & I hopped in my '99 DII headed for vaction last weekend. We made one last stop to get my wife's coffe at MacDs. As we pulled up to the window to pay the truck just died rite there at the drive-thru. Turns over fine, just no hint of running. Had it towed home & continued on to vacation, haven't looked at it since. I'm guessing fuel pump? Any thoughts or suggestions before I begin flayling away at my freshly filled gas tank?

  2. #2
    Join Date
    Jul 2012
    Location
    Pharr, Texas, USA
    Posts
    15

    Default

    hi...
    you can start by checking the fuses....the fuse box under the hood, holds the fuse for the gas pump and the relay, to test the relay you can exchange with other one in the box... they are the same ones......in there are some fuses with at engine figure.. check that ones too....
    Hope that this help you...
    Discovery II 2001

    Rebuild > front and rear propshaft, alternator
    Replace > oil pump, water pump, time kit, shocks, engine and trans mounts, front wheel hubs, abs front sensor, trans oil temp sensor, evap valve, trans filter, engine sump gasket, clock light bulb...
    Cleaning > Throtle body, pvc valve..

    Have a nice day...

  3. #3
    Join Date
    Jun 2012
    Location
    Old Town, Maine
    Posts
    217

    Default

    Hello Memoje,

    I haven't had a chance to do any troubleshooting...I was fairly disgusted at the timing of the stoppage of running on the first day of my vacation so I assumed the worse, parked it and walked away for a week. Had planned to check fuses but didn't realize that there is also a relay involved...confounded electronics, I'll take a mechanical fuel pump any-day! Thanks for the response and the info, I'll let you know how I make out.

  4. #4
    Join Date
    Jun 2012
    Location
    Old Town, Maine
    Posts
    217

    Default

    Ok, finally after several weeks I had a chance to check into what I thought was a fuel pump issue on my '99 DII. Fuel pump fuse is OK. Was going to swap one of the relays to the fuel pump but numbers didn't match so I ended up getting a used one off ebay. Replaced the relay and the truck fired right up and ran smooth. I let it run for a few minutes until it got up to temperature then shut it down. 5 minutes later I tried to start it to no avail...turns over fine but either no fuel or no fire. Has any one had this issue or have suggestions what to check next?

  5. #5
    Join Date
    May 2006
    Posts
    2,020

    Default

    Have you checked the spark plugs? Are they getting fuel? Colour of the carbon on the spark plugs?
    A quick pressure check on the fuel rail also would assist in determining if it's the fuel pump.
    Les Parker
    Tech. Support and Parts Specialist
    Rovers North Inc.

  6. #6
    Join Date
    Jun 2012
    Location
    Old Town, Maine
    Posts
    217

    Default

    Thanks for your input Les. Have not checked the plugs as they were replaced along w/ the heads less than 7k miles ago. Didn't think they would be an issues but your right, I should check them for fuel and fire. Checking the fuel rail pressure did occur to me but unfortunately I am not equipped. I'll check with the local garage to see if I may be able to borrow. Thanks again

  7. #7
    Join Date
    Jun 2012
    Location
    Old Town, Maine
    Posts
    217

    Default

    OK, had plans to check fuel delivery pressure as suggested by Les...once again the truck fired-up w/ no issue however when I put it into gear and hit the gas the throttle stuck and off I went much to my surprise. Was able to get it shut down before I rammed the garage door. Upon closer inspection I discovered that the throttle body is sticking. I understand the operation of the throttle body but not sure if a sticky throttle body could also be the cause of no fuel? Is it possible the sticky throttle body could be giving a false reading to the ECM and not allow fuel to flow?

  8. #8
    Join Date
    May 2006
    Posts
    2,020

    Default

    So, it could be a bad T.P.S. or Air Flow Meter.
    Do you have a "Check Engine" light on?
    Les Parker
    Tech. Support and Parts Specialist
    Rovers North Inc.

  9. #9
    Join Date
    Jun 2012
    Location
    Old Town, Maine
    Posts
    217

    Default

    Hey Les...I have all kinds of pretty lights on my dash board...3-amigos and yes, check engine light. The check engine light had been intermitant, had it checked and code came up as bad O2 sensor. Replaced the RH front O2 sensor and was good to go for a few days when the check engine light came back on...never had it checked, figured it was another O2 sensor. Is it possible the sticky throttle body is affecting the T.P.S or is it more likely that the T.P.S. is bad?

  10. #10
    Join Date
    Jun 2012
    Location
    Old Town, Maine
    Posts
    217

    Default

    Removed MAF w/ air tube and inspected the throttle body last night...was definately sticking, inside throat of the throttle body had a bit of gunk build-up from what I pressume to be oil residue blow-by from the PCV tube that connects to the throttle body. Cleaned every thing up, re-assembled, adjusted throttle cables per LR workshop manual specs but no go...turns over fine, just no fuel. Just ordered an inexpensive but highly rated engine scanner, hopefully this will help me pinpoint the problem.

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