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2003 Ford F250 Super Duty Crew Cab Questions & Answers
I just bought a 2003 superduty crew with a 6.0 diesel it will not go into 4 wheel drive. i have replaced the vacuume pump and the solinoid (they were bad) I have no power to the switch in the dash. i
What large square fuse ? The 4X4 switch get's it's B+ voltage from the four - wheel drive control module . computer controlled ! Has two relay's - transfercase hi to low & low to high ,located in the Auxiliary relay box #3 . location left side of radiator core support . Your best bet ,take it to a qualified repair shop that has a diagnostic tool that can communicate with the 4X4 control module . Read code's ! Probably has a code like one of these
P1812
Transmission 4-Wheel Drive Mode Select Circuit Failure
4WD control module
Go To Pinpoint Test D .
P1815
Transmission 4-Wheel Drive Mode Select Short Circuit to Ground
4WD control module
Go To Pinpoint Test A .
But code have a few others as well .
B2105
Throttle Position Input Out of Range Low
4WD control module
Go To Pinpoint Test B .
B2106
Throttle Position Input Out of Range High
4WD control module
Go To Pinpoint Test B .
C1728
Transfer Case Unable to Transition Between 2H and 4H.
4WD control module
Go To Pinpoint Test C .
C1729
Transfer Case Unable to Transition Between 4WD HIGH and 4WD LOW
4WD control module
Go To Pinpoint Test D .
C1979
IWE Solenoid Circuit Failure
4WD control module
Go To Pinpoint Test F .
C1980
IWE Solenoid Short to Battery
4WD control module
Go To Pinpoint Test F .
P1812
Transmission 4-Wheel Drive Mode Select Circuit Failure
4WD control module
Go To Pinpoint Test D .
P1815
Transmission 4-Wheel Drive Mode Select Short Circuit to Ground
4WD control module
Go To Pinpoint Test A .
P1824
Transmission 4-Wheel Drive Clutch Relay Circuit Failure
4WD control module
Go To Pinpoint Test A .
P1826
Transmission 4-Wheel Drive Low Clutch Relay Short Circuit to Battery
4WD control module
Go To Pinpoint Test A .
P1827
Transmission 4-Wheel Drive Low Clutch Relay Short Circuit to Ground
4WD control module
Go To Pinpoint Test A .
P1849
Transmission Transfer Case Contact Plate A Short Circuit to Ground
4WD control module
Go To Pinpoint Test D .
P1853
Transmission Transfer Case Contact Plate B Short Circuit to Ground
4WD control module
Go To Pinpoint Test D .
P1857
Transmission Transfer Case Contact Plate C Short Circuit to Ground
4WD control module
Go To Pinpoint Test D .
P1861
Transmission Transfer Case Contact Plate D Short Circuit to Ground
4WD control module
Go To Pinpoint Test D .
P1867
Transmission Transfer Case Contact Plate General Circuit Failure
4WD control module
Go To Pinpoint Test D .
P1891
Transmission Transfer Case Contact Plate Ground Return Open Circuit
4WD control module
Go To Pinpoint Test D .
2003 F250 Super Duty diesel 6.0 needs multiple tries to start.
Are you getting white smoke or no smoke from the exhaust after failed start attempts?
When the FICM was replaced, did Ford check the glow plugs and injectors for proper operation?
Are you using an engine oil heating element or is the engine dead cold when this happens?
How long does the engine run the first and second start attempts before it stalls and dies?
Stalling issue?
This sounds like the idle control valve or stepper motor as it's sometimes called needing a good clean out or replacement. When faulty this would cause all the symptoms you are describing.
Dome lights & door light stay on , door lock on drivers side wont stay locked
The switches that control the lights for open doors are made right into the door latches and they have a history of sticking and causing problems like that.
Here is a technique that often works well and eliminates the problem at no cost.
Get a can of spray lube like WD40 or something like it and has a straw on the nozzle. Spray it generously up into the latch mechanism. Now open and close the door numerous times to work it in. Repeat this process several times. Since you don't really know which door is causing the problem, you should do all of them. It's usually caused by the most frequently used door but it's not guaranteed to be that one.
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