4 wheel drive not working - F150online Forums



1997 - 2003 F-150

4 wheel drive not working

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  #1  
Old 01-06-2010, 03:09 PM
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4 wheel drive not working

i have a 2003 f150. the 4 wheel drive was working fine one day and went out the next and nothing. the light on dash says its in but the tires not pulling. i tried it again a couple days later now it makes a grinding noise before "chunking" into 4 wheel, but still not pulling in the front. any help is appreciated.
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Old 01-06-2010, 05:20 PM
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Quote:
Originally Posted by stacyd View Post
i have a 2003 f150. the 4 wheel drive was working fine one day and went out the next and nothing. the light on dash says its in but the tires not pulling. i tried it again a couple days later now it makes a grinding noise before "chunking" into 4 wheel, but still not pulling in the front. any help is appreciated.
Shift on the fly or man t-case?
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Old 01-07-2010, 11:55 AM
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Location: Madison Heights, MI
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It could be one of these things.

1. The electric shift motor on the transfer case is going bad.
2. The front axel vacuume servo is going bad or sticking.
3. No vaccume going to the front axel servo
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Old 01-07-2010, 12:55 PM
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Originally Posted by ford4life. View Post
Shift on the fly or man t-case?
manual in the floor
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