AC Issue
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Freshman User
Joined: Sep 2015
Posts: 44
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From: Arlington
AC Issue
Ok, front air conditioner is coming through defrost vents. This was happening when I first purchased the Ex but after a few minutes would come through correct vents. Now no air from front vents, only cold air from defrost. Any thoughts? Below is a quick video of me catching this.
https://db.tt/7UKgMSEw
https://db.tt/7UKgMSEw
Fleet Mechanic
Joined: Mar 2004
Posts: 1,483
Likes: 1
From: SE PA
If you have manual HVAC controls, it's likely a vacuum leak. The controls default to defrost with lack of vacuum. (My Viper uses the same controls as my Ex, and in certain heavy throttle positions, the A/C goes from the vents to the defrost. Some gyus install a check valve to stop this.)
In an Excursion, I've seen that this is often related to the front SOTF hubs. Do you know if they work correctly?
In an Excursion, I've seen that this is often related to the front SOTF hubs. Do you know if they work correctly?
Lead Driver
Joined: Jul 2013
Posts: 9,266
Likes: 150
From: In the field...
If you have manual HVAC controls, it's likely a vacuum leak. The controls default to defrost with lack of vacuum. (My Viper uses the same controls as my Ex, and in certain heavy throttle positions, the A/C goes from the vents to the defrost. Some gyus install a check valve to stop this.)
In an Excursion, I've seen that this is often related to the front SOTF hubs. Do you know if they work correctly?
In an Excursion, I've seen that this is often related to the front SOTF hubs. Do you know if they work correctly?
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