# 2007 f150 5.4 super crew 4wd issues

**URL:** <https://community.cartalk.com/t/2007-f150-5-4-super-crew-4wd-issues/92518>\
**Category:** Maintenance/Repairs\
**Created:** [February 14, 2016, 7:58am UTC](https://community.cartalk.com/t/2007-f150-5-4-super-crew-4wd-issues/92518 "2016-02-14T07:58:26Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Staceyb](https://avatars.discourse-cdn.com/v4/letter/s/97f17d/32.png) [@Staceyb](https://community.cartalk.com/u/Staceyb)\
**Post date:** [February 14, 2016, 7:58am UTC](https://community.cartalk.com/t/2007-f150-5-4-super-crew-4wd-issues/92518/1 "2016-02-14T07:58:26Z")

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My f150 4wd worked great to pull a car out of the snow the next day my motor froze up I had a new motor installed and the day I picked it up the 4wd didn’t work. I have vacuum to both actuators when in 2wd and none in 4wd with light on. If I disconnect the vacuum lines at solenoid while in 4wd and put them right back on then drive it 4wd drive works, so it’s like the lines are not venting but I can blow threw them. Any ideas how it’s holding vacuum to hold the iwe’s from engaging??

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**Author:** ![Staceyb](https://avatars.discourse-cdn.com/v4/letter/s/97f17d/32.png) [@Staceyb](https://community.cartalk.com/u/Staceyb)\
**Post date:** [February 16, 2016, 4:49am UTC](https://community.cartalk.com/t/2007-f150-5-4-super-crew-4wd-issues/92518/2 "2016-02-16T04:49:47Z")

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Turns out it’s been below freezing here for sometime and the actuators locked frozen in 2wd position. I’m suprised I didn’t get 1 comment, I guess this isn’t the site for me. But I will still listen to the guys on Saturday mornings.

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**Author:** ![Barkydog](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/barkydog/32/2470_2.png) [@Barkydog](https://community.cartalk.com/u/Barkydog)\
**Post date:** [February 16, 2016, 5:12am UTC](https://community.cartalk.com/t/2007-f150-5-4-super-crew-4wd-issues/92518/3 "2016-02-16T05:12:10Z")

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Glad things worked out, so it is now working? If so next question would be why was there enough water to lock the activators.

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [February 17, 2016, 9:49am UTC](https://community.cartalk.com/t/2007-f150-5-4-super-crew-4wd-issues/92518/4 "2016-02-17T09:49:35Z")

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My Ford 4wd truck must not have those vacuum actuators. My motor never froze up once pulling somebody out of the snow. Even in sub-zero temperatures. True, mine is 40+ years old …lol … But you got a new one there, so I guess you are right, this forum isn’t the right place for you.

BTW: Didn’t you find it unusual your motor froze up while pulling somebody from a snow bank?