Blend door troubles
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Joined: Nov 2013
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Blend door troubles
Hello all, My question is that ever since I've had the injectors changed, my blend door only allows air to come out of the defroster. I'm told that this is controlled by vacuum. Where should I start to look and where is that on the truck? Thanks for any and all assistance.
Posting Guru
Joined: Dec 2006
Posts: 1,391
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From: NorCal
The vacuum pump is on the passenger side fender under the hood. Check all the vacuum lines in that area for being unhooked or for any with cracks in them. Most likely the shop that changed your injectors forgot to plug one back in.
And yes, if your system looses vacuum pressure, the vents automatically revert to defrost only.
And yes, if your system looses vacuum pressure, the vents automatically revert to defrost only.
Logistics Pro
Joined: Aug 2007
Posts: 3,974
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From: Millersburg, OH
Hello all, My question is that ever since I've had the injectors changed, my blend door only allows air to come out of the defroster. I'm told that this is controlled by vacuum. Where should I start to look and where is that on the truck? Thanks for any and all assistance.
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