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Posted on Jan 02, 2017
Check the 'heater control valve'. This valve opens when u turn on the heat switch on the dash, so the hot coolant will flow thru the heater core and provide heat. So although the coolant is circulating in the engine, the valve controlling the flow to the heater core is stuck closed, or not working.
Posted on Nov 15, 2008
SOURCE: Water pump on 2005 Chevy Equinox
Water pump is locate on the front center of the engine.
I will rate water pump change as a 7/10 in difficulty scale.
You should check for special tool(s) requirement from the library before you start.
It's a good time to change the drive belt at the same time.
50/50 coolant mix is fine.
If you haul heavy load or in cold climate then bump it up to 60/40 mix
DO NOT FORGET to find or draw the belt routing diagram before you undo the tension.
A 30 second sketch will save you a lot of time.
Posted on Jul 15, 2009
Start the engine when cool, remove rad cap and start engine and let it run with the heater on. (not defrost) Top up coolant as needed in rad, and let it run until either the rad fan comes on and off 2 or 3 times, or you can see increased flow in rad from thermostat opening. It will obviously happen after it reaches operating temperature, so watch after gauge gets close to there. Wait until you see that flow 2 or 3 times or fan comes on and off before you put cap on, and fill return bottle to proper level as well. That should cure it, by getting air out of system, and coolant flowing through heater core.
Posted on Dec 24, 2009
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