| [GMCnet] No hot air from dash heat vents [message #147831] |
Wed, 26 October 2011 05:56  |
kincaid76royale
Messages: 71
Registered: February 2005
Karma:
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Hi All:
We have a 76 Royale RB. I have replaced the heater core and since then I cannot get any heat in the cabin.
At first I wasn't getting any hot water circulation through the heater core, then following the suggestion of Jim Kanomata's mechanic, Alonzo, I added a shut off valve in the hose to the hot water heater heat exchanger. Now I have 190* hot water through the heater core. The fan runs and I can hear/see the vacuum actuators work as I move the control levers BUT only cold air comes out of the dash vents. Is there a combination of settings that I am missing?
Jack Kincaid, Castro Valley, CA
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