hot interior compartment
Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
Originally Posted by cherrybombc3
Isnt there a shut off valve already (stock) in the heater hose coming off the intake manifold? Or is this only activated / closed when the air is on?
Intermediate
Joined: Jul 2006
Posts: 41
Likes: 0
From: Manakau City Auckland
Originally Posted by markbett
Astro-Smashtro. From the sound of Astro-Ventilation it should be some space age super cool system. I could roast a pig down by my feet! Who designed that system?
Am thinking I will do the same after seeing your photos
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
C3 Water Shut-off Valve
It appears from the A/C system logic that the water shut-off valve is only OFF when the HVAC system is completely OFF (left dial all the way forward) or when the A/C is in the MAX (recirculate) mode. All other times it is allowing the hot coolant to circulate through the heater core. (I know, I thought that was "curious", too.)
I'm considering a different approach to the manual shut-off valve under the hood. It appears that the vacuum line going to the water valve is running close to the main vacuum line going to the A/C control head (near the blower area in the engine compartment). I'm thinking of putting a jumper tube in the water valve vacuum line (black with white line) and a "T" fitting in the vacuum source line (solid black tubing). In the winter, I can plumb it like the design shows. In the summer, I can plug off the water valve line coming from the control head and jumper the main vacuum line to feed the water valve. The valve should then stay activated at all times. And, I don't have the unsightly manual valve sticking on the fender well. What do you guys/gals think?
I'm considering a different approach to the manual shut-off valve under the hood. It appears that the vacuum line going to the water valve is running close to the main vacuum line going to the A/C control head (near the blower area in the engine compartment). I'm thinking of putting a jumper tube in the water valve vacuum line (black with white line) and a "T" fitting in the vacuum source line (solid black tubing). In the winter, I can plumb it like the design shows. In the summer, I can plug off the water valve line coming from the control head and jumper the main vacuum line to feed the water valve. The valve should then stay activated at all times. And, I don't have the unsightly manual valve sticking on the fender well. What do you guys/gals think?
