codyhuntsaz Report post Posted April 3, 2021 Are there any auto mechanics that specialize in air-conditioning? I have a 2013 F150 that has a couple issues that I’d like to try and get fixed. First issue is that when the air is in the off position whatever vent was last opened still allows air flow. The other issue is that the recycle doesn’t work, it’s always outside air even when recycle is engaged. Share this post Link to post Share on other sites
Edge Report post Posted April 3, 2021 This sounds similar to a vacuum issue. But the defrost vent is the default position in my older Ford. 1 Share this post Link to post Share on other sites
PRDATR Report post Posted April 3, 2021 Give Chris Rollins a call. His shop is attached to the back of Caswells. He has done a bunch of work on my F250 including replacing the whole AC system. His number is 480-221-3384 and his shop is called Rowdy Racks. He is usually open every other Saturday. Sounds like it might be the vacuum pump, which is not uncommon. Is the truck 4WD? 1 Share this post Link to post Share on other sites
codyhuntsaz Report post Posted April 3, 2021 38 minutes ago, PRDATR said: Give Chris Rollins a call. His shop is attached to the back of Caswells. He has done a bunch of work on my F250 including replacing the whole AC system. His number is 480-221-3384 and his shop is called Rowdy Racks. He is usually open every other Saturday. Sounds like it might be the vacuum pump, which is not uncommon. Is the truck 4WD? Yes it is 4WD Share this post Link to post Share on other sites
Edge Report post Posted April 3, 2021 Is it slow going in and out of 4wd? I believe the hub servos are vacuum assisted too. The vacuum can on my Super Duty was replaced by the previous owner and it's too small. When vacuum is low like when accelerating, the defrost vent opens until the vacuum returns. Share this post Link to post Share on other sites
PRDATR Report post Posted April 3, 2021 3 hours ago, codyhuntsaz said: Yes it is 4WD Then if it is Switch On The Fly it could be the O Ring Seal on the front hub , or it could also be the hoses going to the hub. With the AC on try switching it in and out of 4WD and see it it has an affect. Make sure to leave it in 4WD for 30 seconds or so. Share this post Link to post Share on other sites
codyhuntsaz Report post Posted April 4, 2021 7 hours ago, PRDATR said: Then if it is Switch On The Fly it could be the O Ring Seal on the front hub , or it could also be the hoses going to the hub. With the AC on try switching it in and out of 4WD and see it it has an affect. Make sure to leave it in 4WD for 30 seconds or so. So I just drove around the neighborhood in and out of four wheel high, four wheel auto and four-wheel low. Doesn’t make a difference if it’s in four-wheel-drive or not. The issue remains that if I shut the AC system off, outside air flows in through whatever the last setting was, in this case it was the dash vents. Once the AC was turned off in 2 Wheel Dr. and four-wheel-drive, air still flows through the vents, the faster I went the higher the airflow got. Also went in four-wheel-drive and I switched from regular AC to max AC to re-circulate the air and it didn’t seem to make a difference in four-wheel-drive or 2 Wheel Dr. Usually you can hear and feel a difference when the air kicks from outside air to recirculate and that doesn’t happen. Share this post Link to post Share on other sites
Rhinoaz Report post Posted April 4, 2021 It’s probably an actuator on one of the doors for the different zones under the dash. Pretty common problem with gm trucks. Not sure about the f word brand. But if I was a betting man that’d be my guess Share this post Link to post Share on other sites
