Question about 1999 Chevrolet Silverado 1500
Heater hose in is warm heater hose out is cool, is there a fuse that controls the function?
is there a electronic operated valve to open and close the flow of glycol to the rad?
if so would there be a link why my speed control is not working on 1and2 .
I have 330,000 kms I should expect some problems right!
Coolant flows thru heater core all the time temp is controlled by doors.you have a blockage in core,try removing hoses and backflushing heater core probably a little bit of scale stopping inlet.the fan speed is probably the blower resistor it is locateed next to blower motor under dash check the plug they burn up
Posted on Dec 09, 2008
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Posted on Jan 02, 2017
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