Question about 1994 GMC Yukon
I changed my heater core, all the settings work, but the digital cold to hot bar on the bottom of the heater display blinks with all the arow lit up but the air is always cool. I checked the fuses but they are fine. help please
You might need to change the thermostat.. when the thermostat isn't working correctly it prevents the hot engine coolant to circulate and give you heat.
Posted on Apr 28, 2009
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Posted on Jan 02, 2017
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--------Go through the procedure to confirm the issue.
Engine Overheats and heater blowing cold?
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This will help.Thanks.
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