NOT GOING INTO 4X4 "SWITCH" - Ford Powerstroke Diesel Forum

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post #1 of 47 Old 12-18-2011, 12:29 PM Thread Starter
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Question NOT GOING INTO 4X4 "SWITCH"

I have a 2001 has the switch on the dash to go into four high or low. It will not engage into 4X4. I have heard of the motor going out is this located on or near the transfer case? Also heard some things about vacuum hoses being the issue "usual location of bad hoses?".
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post #2 of 47 Old 12-18-2011, 01:04 PM
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Could be the motor, switch(not likely), vacuum hose, harness(probably not), or the seals associated with the wheel bearings/hubs.

Have you tried locking the hubs in to see if it actually engages and works? Try that first. If it does it should eliminate the motor, switch, and harness as a problem cause you'll know the t-case shifted into 4bi.

Then start checking vacuum hoses and connectors, etc. If nothing wrong there it's a seal. Hope I explained that right. good luck

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post #3 of 47 Old 12-18-2011, 01:07 PM
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take the little eletric motor off the t-case and clean it check the wires for any open or rubbed connections check ur fuse

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post #4 of 47 Old 12-18-2011, 01:56 PM
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My bet says the Stock Auto Lockers are the culprit!...

Like stated earlier, Switch the hubs to LOCK and select 4wd. IF your getting tire scrub while turning its obviously working. Or, lack up the front end with both wheels off the ground, and select 4wd lock the hubs, and try and rotate the tires.

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post #5 of 47 Old 12-18-2011, 02:12 PM Thread Starter
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with the hubs locked i get nothing when i switch the switch to 4high. The hubs are find im not a rookie with locking front hubs..Thinking the motor im going to try and clean it and see how it does.
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post #6 of 47 Old 12-18-2011, 04:52 PM
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its gona be the little eletric motor the switch hardly ever goes out and even if the hubs didnt engage due to vaccum leak ur t-case would still shift into 4hi and 4lo thats y we have manual hubs the hoses run from the vaccum pump pass side across the front of the motor mount to the and down to both hubs but that has nothin to do w/ the tcase problem

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post #7 of 47 Old 12-18-2011, 04:57 PM
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No, Just turn the key to ON and flip the switch,,,,,,you should hear it make noise! No need to run the truck

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post #8 of 47 Old 12-18-2011, 05:44 PM
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Quote:
Originally Posted by Young-SC-Owner View Post
No, Just turn the key to ON and flip the switch,,,,,,you should hear it make noise! No need to run the truck
man u cant hear anything with the prick running, anything u can do with it off its better off that way lol

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post #9 of 47 Old 12-18-2011, 05:55 PM
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i would hope youd be able to feel the difference in 4hi and 4lo from 2wd by just placing the truck in drive. doesnt matter i bet its the motor let us know when u figure it out

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post #10 of 47 Old 12-19-2011, 06:29 PM
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i am having a similar problem(4hi works but no 4lo). let us know how it goes and if the motor fixes it

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