Home » Public Forums » GMCnet » [GMCnet] Is the 3/4 inch heater hose to the dash heater from the engine? And the 5/8 inch hose bach to the cooling system.
BobDunahugh Messages: 2465 Registered: October 2010 Location: Cedar Rapids, IA
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The vacuum controlled 5/8 heater water valve is directional that's in the 5/8 inch return hose. Am I correct? Bob Dunahugh 78 Royale
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