Question about 2008 Ford F 250 Super Duty 4WD

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Have a 2008 Ford F250 6.4 Limp Home Mode problem.

Have a 2008 Ford F250 6.4l- Limp Home Mode problem.Truck would not start after driving to my shop , I tried to start ,then after 4 cranks it went into limp mode. A brief oil light came on then the wrench . After driving 40 miles to another place , it was parked for 4 hours then I started it up to head home. There was no issues, started and drove home 45 miles with no limp mode. I pulled into the driveway stopped the truck then restarted it. limp mode off. Then cranked it over a few times to see if still a problem came back, after 4 more cranks limp mode again. Question, it does not throw a error code or engine light ? Any help? I read a few discussion threads and could be a few things, any help. Local mechanic thought maybe air filter or maf sensor ??

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  • Budman1972 Jan 02, 2013

    1/1/13 4:30pm pacific time update -Went out this afternoon to see if the truck would start, started it up 6 times no issues, I am now going to see if it does it after letting it get hot after driving it. Will keep u updated if it happens again

  • Budman1972 Jan 02, 2013

    update 1/2/2013- Started the truck this morning drove it to the shop appox 3 miles no limp mode, got to shop turned truck off and started up again and limp mode went on. I read another discussion thread and discussed having sludge in the oil pan. I noticed that i was on a slant to the left and then put it on level ground , the limp mode went off, drove it home no limp mode.. Has anone heard of oil sludge affecting the sensor or oil pump going out, I am going to get the oil changed tonight and see

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1779 Answers

SOURCE: limp home mode

You need to scan for engine trouble codes. Most parts stores will do this for free, and tell you what they mean and make recommendations on what to do. The 'limp mode' kicks in to prevent damage to the vehicle when the computer gets data that something is wrong.. When you shut it off, it's temporarily reset, but then the cars computer is signaling there is still a problem, and it goes back into limp mode. If you have any questions after getting the codes 'read' , post questions and code #;s here for help. Good luck.

Posted on Apr 28, 2009

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roniecon
  • 6927 Answers

SOURCE: 1988 Ford ranger 2.9 standard

Change the stater in the distributor(hall effect).

Posted on Jan 05, 2010

  • 31 Answers

SOURCE: I have a Ford F150, I in drove in high water

i would drain the oil and change it and the oil filter, then i would replace the fuel filter and try to start it if still has an issue, while cranking check for spark, if you have spark and fuel vehicle should run , as far as the code look up trouble codes on google for automotive and it should help you out.

Posted on Mar 15, 2010

  • 209 Answers

SOURCE: Truck will crank but not

It's very possible you tripped the inertia, or fuel cut of switch when impacting the driveway. Not sure what year your truck, but many of the pick-up have this switch in the right side kick panel. If you have an owners manual, it will tell you the location. There is a button on this switch, which you depress to reset it.

Posted on Sep 05, 2011

Dirt Dobber
  • 253 Answers

SOURCE: 98 Ford F150 w/4.6l Wont start. Hear fuel pump

have diagnostic codes checked to see if you have a cam or crank sensor fault. make sure fuel pressure is at the required pressure, just testing to see if you have fuel at the valve is not enough. replace all spark plug wires. if you replaced two then all are just as old and even when they "look good" does not qualify as "they are good". Replace coil pack. start up drive away happy

Posted on Sep 05, 2011

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Electronic throttle control (if equipped): Illuminates when the engine has defaulted to a ’limp-home’ operation. Report the fault to a dealer at the earliest opportunity.

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Were you pulling something ( like a log or bush ) and spinning the tires a lot ?

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The EMC detected and problem so it's in limp mode, As long as it's in limp mode the 4th and OD will not activate. Take care not to burn up the transmission by running it hard while your in the limp mode.
Your going to have to get the truck scanned to clear any codes and why there are DTC codes. Auto Zone scan for free and most auto shops charge $10.00 to $20.00 to scan sine they want the business.
If you want to clear the codes your self you can put the ignition to the run position and pull the ECM (Batt) fuse out for 20 sec and place it back in then start the truck. It may stall but let it, just start it again and this would have cleared all the DTC code history.
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