NEED HELP: 4x4 issus need help - FordTough.ca - Home of Canadian Ford Truck Enthusiasts
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post #1 of 11 (permalink) Old 04-27-2013, 05:59 PM Thread Starter
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4x4 issus need help

hi guys been long time forgot my last password i was formaly known as martyf150xtr i bout a 2004 f150 supercrew and having 4x4 issus wen i turn it on the 4 bi light comes on then quikly turns off then the truck is stuck in four bi brout it to ford and they said it was the transfercase motor they put a new one in and still the same now they are saying its the computor and they whant 1200$ ..... any ideas? cause if i go thru it it will be over 2000$
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post #2 of 11 (permalink) Old 04-27-2013, 07:32 PM
 
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On the firewall behind the battery there is a solenoid that fails. It is about $20 and takes 10 min to change.

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post #3 of 11 (permalink) Old 04-27-2013, 07:40 PM
 
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http://www.rockauto.com/catalog/x,ca...parttype,17648

There is the part. The one on your truck (old style) doesn't have the drip hood on it. This part failed on my 06. I replaced with the dorman from rock auto and the problem was solved. I too was told by the dealer that I needed a new transfer case shifter motor. Hmmm $20 vs. $1000..........

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post #4 of 11 (permalink) Old 04-27-2013, 11:34 PM
 
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99.9% of the time the solenoid is the issue.

It could be the switch on the dash itself as well failing when you engage 4x4.

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post #5 of 11 (permalink) Old 04-28-2013, 12:42 AM
 
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I would almost be willing to put money on the solenoid. For $20 it`s worth it for the new style with the hood imo

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post #6 of 11 (permalink) Old 04-28-2013, 05:16 AM Thread Starter
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i just cahged it lst week dint work ...... aperntly the dash swithch works the tested it at ford...its very frustarating any more ideas?
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post #7 of 11 (permalink) Old 04-28-2013, 11:36 AM
 
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If your locked into 4x my next shot would be a vacuum leak somewhere

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post #8 of 11 (permalink) Old 05-06-2013, 11:30 PM
 
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smoke test it. 99.9 % of the time the vac harness going to the hubs is compromised, and from that point the ensuing dirt and crap being sucked into the lines does a number on the solenoid.

IWE actuators are also very, very common.

remember that these things are opposite the super doodies. vacuum is constant on the hubs of the 1/2 tons, 'sucking' on the actuators to keep them away from the hub for 2wd operation. if your smoke test comes back aces then check for vac at the end of the harness nearest each hub. @ idle you want a nice steady vacuum in 2wd, and that should disappear for 4x. (best to do this test with the front end on stands in the air .... you can turn the wheels to see the hubs engaging and disengaging the cv axles)

if you have steady vacuum (ie steady 2wd) after all this then yes, do check the solenoid both electrically and mechanically.

we stock the solenoids at the dealership. i do change them from time to time, but they are far from the normal fix on these trucks. good luck!

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post #9 of 11 (permalink) Old 05-13-2013, 08:58 AM Thread Starter
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problem is fixed it had nothing to do with the vacuum system or hub assembly it was the two large relays in the driver side fender I gess that's what controls your transfer case motor one of them were [email protected]#$ best bid don't bring your truck to Elliot lake ford they are a bunch of thieves the wanted to change the pcm module and transfer case motor would of been 2500$ I got so mad I went to the Cambrian ford dealer in Sudbury the guy dint even look at the truck and then told me to start with the realys and if its not that follow the wires down to the transfer case with my luck it was the relays.. so wen your you turn on your 4x and the light turns of after two seconds and your stuck in 4x your transfer case motor times out witch indicats that you might have a short or a [email protected]##$ realy in the fender

thank you for all the help
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post #10 of 11 (permalink) Old 05-13-2013, 09:48 PM
 
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So kool to hear you got the problem fixed but what did the relays set you back ?

Lumberjack
2010 F150 Supercrew 4X4
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