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To be clear, my heat & ac work fine, however it only blows out of the uppermost vents along the perimeter of the dash at the base of the windshield no matter the vent groups selected on the dial.
Now that I know where to look, I'll start with the harness connection to the housing shown in the video & try the rpm method for giggles. Just maybe I'll get lucky. Thanks guys.
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this video shows working with the vac lines that move the air doors.
Looks like that vehicle uses an electric motor for the blend door (hot vs cold), but vacuum for the various air doors.
https://www.youtube.com/watch?v=LHxiWpxu9e4
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Maybe?
http://youtu.be/LHxiWpxu9e4
ETA: Just beat me to getting this one up with the same time stamp. Was trying to find a better one, but haven't yet.
Quite a few comments about vacuum lines with wear holes in the engine compartment and being able to splice together with hose to seal it.
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Oh good because I thought that video wasn't quite covering my dilemma. Not surprisingly, my second attempt at remedy didn't solve for it. I'll watch this next one & give it a go. Appreciate the consideration from those who know more on this subject than I.
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I already replaced a segment of that line in the engine compartment! I did not replace the check valves though & will revisit the entire length of line now. Thank you!
Fingers crossed it's that easy & inexpensive otherwise, he was quite clear the dash frame was wholly removed & it'll probably be something else in the cab or switch that came loose during the heater core installation.
Those dash covers & face frames are silly expensive (cases of match ammo is how I see it -lol) & if I have to pull the dash I'll need to replace both as they are already in pieces. Bummer.
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Yeah, pretty messy stuff. I'm hoping it isn't something way up in the dash, but it's usually not a coincidence that it stopped working at the same time. [panic] My fingers are crossed that it's something accessible and easy.
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First find the vac hose going to the climate control from the engine and pull a vacuum on it. See if doors move etc. if the vac is not held you got a leak somewhere in there. Did you remove any vac hoses? If so when you put them back you should trim back the stretched part so when you slide them on they hold. Sometimes the hoses seal and work until you remove them and then they leak due to stretch and hardened rubber.
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Yeah, it just a tedious process. I would suspect the vacuum reservoir first then something that got unhooked for the heater core. Pull vacuum on each portion of the system.
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Finding vacuum leaks suck.............
Sorry, couldn’t resist.....[Tooth]
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Another thing you could do is run a smoke machine. You can also roll your own smoke machine.
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