HELP! 4x4 doesnt do anything when i turn the switch - Ford Powerstroke Diesel Forum
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post #1 of 19 Old 01-07-2012, 11:38 AM Thread Starter
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HELP! 4x4 doesnt do anything when i turn the switch

i checked for power at the switch but nothing there. also when i switch it to 4hi the dash light does not come on. no noise from the motor on transfer case. its a 2000 superduty free/lock hubs. i was pulling into drive and it worked fine turned it off went into house for 2 hours came back out went to put it in 4wheel again and it wouldnt work dash light wont come on or nothing will happen. checked fuse under hood. also checked 4 matching relays by fuse box under the hood. any ideas on what els it could be?
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post #2 of 19 Old 01-07-2012, 04:14 PM
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Pull the switch out of the dash and check the connection at the harness could be loose check all wires behind the switch for burning or signs of shorts.

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post #3 of 19 Old 01-07-2012, 07:19 PM
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Just recently went through the same problem... spent hours upon hours testing relays, fuses, tracing wires, etc. Got tired of doing all of that and took it in and had a computer hooked up to it and had a ton of codes for a faulty transfer case motor. New motor installed an all was well again.

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post #4 of 19 Old 01-08-2012, 07:08 AM
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Tap On the motor with a hammer,seriously, My 98 explorer does this crap all the time and a couple of taps and it goes on working fine, Im just too cheap to buy the motor for it.
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post #5 of 19 Old 01-08-2012, 11:04 AM Thread Starter
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when you traced the wires and stuff did you check for power at the switch? and what kinda power to what prongs thatks for the help
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post #6 of 19 Old 01-08-2012, 06:41 PM
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Mainly used an ohm meter to check the switch, relays and the motor. Once they all checked out, we had it put on a computer

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post #7 of 19 Old 01-09-2012, 12:43 PM Thread Starter
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Quote:
Originally Posted by slowridin03 View Post
Mainly used an ohm meter to check the switch, relays and the motor. Once they all checked out, we had it put on a computer

thank you so much
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post #8 of 19 Old 01-11-2012, 09:27 PM
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In the transfer case motor assy there is a set of contacts that get dirty so the computer doesn't know what position it's in. There fore is just sits there and does nothing. I had this same problem before cause I don't use my 4wd very often. Take it apart, clean it and slap it back together. Bada bing bada boom.

I got into the habit of cycling the 4wd every now and then and haven't had any troubles since.

Good luck and let us know what you find out.

Tom
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post #9 of 19 Old 01-14-2012, 06:08 AM Thread Starter
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Quote:
Originally Posted by Ozonkiller View Post
In the transfer case motor assy there is a set of contacts that get dirty so the computer doesn't know what position it's in. There fore is just sits there and does nothing. I had this same problem before cause I don't use my 4wd very often. Take it apart, clean it and slap it back together. Bada bing bada boom.

I got into the habit of cycling the 4wd every now and then and haven't had any troubles since.

Good luck and let us know what you find out.

Tom
thanks ill do that. i use mine all the time cause its a heavy pig and likes to sink. i have to pull into yard every so often and it goes in the yard fine but wont come out so i have to put it in 4wheel lol
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post #10 of 19 Old 01-14-2012, 11:09 AM Thread Starter
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i checked the conections in motor they are clean and as are bot the plugs that conect to the senser and motor. put power to the motor it seems to work but still nothing when i switch from 2 to 4wheel. i dont understand whats going on
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