[DML] Re: Vacuum hose to AC Switch
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[DML] Re: Vacuum hose to AC Switch



In the engine compartment, it starts at the vacuum reservoir bottle 
hidden inside the left pontoon just forward of the emission cannister. 
You'll also see a small balck hard plastic line that goes from the left 
pontoon to the heater valve - that's not it. 

Inside the car, you'll fine a hard black plastic line about 1/4" 
diameter, you can see it if you lift up the wooden deck on the driver 
side. It goes thru the console and then converts to a soft rubber line 
inside the console about where your right knee hits the console. You 
can also see it inside the console if you open up the plate the covers 
the shifter. That soft line goes to the mode switch. 

You'll see the 1/8" line snaking thru there too. 

If that 1/4" main line is broken or disconnected, none of the heat or 
AC functions will work other than the fan, i.e. the fan will make lots 
of noise but nothing will come out no matter where you set the mode 
switch. It's also a pretty significant vacuum leak. 

There's a great diagram of this in the technical manual (the smaller 
manual, NOT the thick service manual). It shows all the vacuum 
connections and how they connect to the mode switch. 

Dave Swingle (spent lots of time in the past two days working on the AC 
system)

 --- In dmcnews@xxxxxxxxxxxxxxx, "birdwell77095" <birdwells@xxxx> wrote:
> The vacuum hose to the center console AC switch is not working 
> properly - either disconnected or the line is possibly broken. I 
> haven't poked around in there yet so to save me some time, can 
someone 
> tell me exactly where this hose is and what it looks like? Thanks.
> 
> Shannon
> VIN 16113








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