Heater issues
#1
Heater issues
I have a 99 Z-71 Silverado 1500 4wd w/ towing package. The heater only blows cold air. I checked the hoses going into the firewall, one is hot the other is warm, probably from the heat of the other hose. I can not find the valve under the dash to manually open it. Am I going to have to rip the whold dash to get at it, or is there a better soloution?
Thanks
Thanks
#2
Sounds like your heater core is plugged/slugged up. I'd pull the hoses and try to back flush it and see it the blockage might break loose. Might need a new core, if all the controls are working ok.
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CM0484
Silverado, Sierra & Fullsize Pick-ups
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October 17th, 2009 12:54 PM