Question about Cars & Trucks
2003 Expedition does not shift into 4 wheel drive in any switch position. Both 4x4 lights on dash use to flash 3 times every 2 minutes, but they no longer do. Checked fuses, I have 12v to 4x4 control module, but no output(12v) going to transfer case shift motor. I can apply 12v to motor and it will shift both ways. Checked resistance on all 4 position of selector switch, all OK per shop manual.
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Posted on Jan 02, 2017
If it has the push button 4wd selector on the dash, it is most likely the transfer case encoder motor. Not to bad to replace but you will have to remove the front driveshaft.
Posted on Aug 19, 2009
Encoder motor located on the transfer case is usually the problem. It is the motor that shifts the transfer case.
Posted on Sep 28, 2009
Testimonial: "Will look into this and report .Thanks so much"
no it should have 12v i would have thought,but to be truthful i dont have a lot of experiance with this american type of vehicle ,land rover with levers yes ,double diff in a 8 wheeler yes ,12 speed foden gearbox yes.Would need to get my dirty mits under the bonnet to to sort it out .Sorry i couldnt be of any more help with a quick bang here or a thump their us brits would rather have a ford transit van diesel .with manual box and power steering .Now that a real mans tool ,ideal for carrying stuff
Posted on Oct 18, 2009
check fuse and relay to switch if power to switch retest switch new doesnt mean not defective if no power check connections and wiring for damage or breaks
Posted on Dec 02, 2009
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