...heater core hoses there are two in the engine compartment.get the engine hot,turn on the heater blower system,then feel on the two hoses they should be hot.If one is hot and the other is cold you ...
...hoses that go to the heater core at the firewall, you will then have two metal pipes that come out of the firewall. Take a garden hose and force water into the "cold" water pipe. Sometimes you will ...
...hoses clamp to two nipples on the heater that extends through the fire wall. If those hoses are blocked or plugged up, no water can circulate and your blower just passes cold air through the heater ...
...cold air from the heater. One hose to the heater core gets hot, one stays cold. I have already back-flushed the heater core and also disconnected the outflow hose while the motor was running and the ...
...cold.the heater will blow cold air Possibly the heater core is 90% blocked. open enough to draw hot water in, (hose feels hot) but not enough volume to provide heat from very cold air, 10% hot water ...
...hose is hot and the other is cold you have a blockage in heater core. if so, sometimes you can remove the hose from heater core and flush it out with a garden hose. if above fails, flush whole
...HEATER HOSES GOING INTO THE REAR HEATER AND SEE IF ONE IS HOT AND THE OTHER ONE IS COLD. IF THEY ARE AS I MENTIONED THEN YOUR PROBLEM COULD BE THE REAR HEATER CONTROL VALVE (if the valve is located ...
...then will blow cold. Clogged heater hoses. Look for a clog where your heater hoses connect to your engine for corrosion. Especially down in engine part of connection and through any extension
Question about 2004 Suburban
...hoses and fill. Run it again and see if that helps any. Check that the heater blend door is actually moving from hot to cold also. It may be stuck in the cold position casing your problem. Hope this ...
...heater hoses. There should be two small hoses going from the engine to the firewall on the passenger side. BEING CAREFUL, feel the hoses for being hot. You just need to touch the hoses and see if it ...
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