# 08 Ford e250 intermittent AC

**URL:** <https://community.cartalk.com/t/08-ford-e250-intermittent-ac/120192>\
**Category:** Maintenance/Repairs\
**Tags:** e250, ford\
**Created:** [July 1, 2018, 11:55am UTC](https://community.cartalk.com/t/08-ford-e250-intermittent-ac/120192 "2018-07-01T11:55:43Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Cliff\_Sims](https://avatars.discourse-cdn.com/v4/letter/c/90ced4/32.png) [@Cliff\_Sims](https://community.cartalk.com/u/Cliff_Sims)\
**Post date:** [July 1, 2018, 11:55am UTC](https://community.cartalk.com/t/08-ford-e250-intermittent-ac/120192/1 "2018-07-01T11:55:43Z")

</div>

Works great at idle but when you put engine under strain like leaving a stop light, AC cuts out until you get up to speed, when engine is not under strain, AC kicks back in. Any ideas??

---

<div class="post-metadata">

**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [July 1, 2018, 1:58pm UTC](https://community.cartalk.com/t/08-ford-e250-intermittent-ac/120192/2 "2018-07-01T13:58:02Z")

</div>

Some vehicles have a switch the disengages the AC clutch when the manifold vacuum drops, I.e. when under load…

---

<div class="post-metadata">

**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\
**Post date:** [July 1, 2018, 3:02pm UTC](https://community.cartalk.com/t/08-ford-e250-intermittent-ac/120192/3 "2018-07-01T15:02:45Z")

</div>

That switch and its input data (vacuum? throttle position? other or a combo?) are the first place to look.