Question about 2001 Chevrolet Silverado 1500
The heat is independant from your ac. look for leaky radiator hoses or heater hoses,radiator cap,coolant
leaks inside your cab under the dashboard on your floor board. if you have non of these problems.
you may have a blocked or stopped up heater core and it will need to be replaced. depending on the
truck some replacements are easy and some hard , trucks and cars vary. good luck!
Posted on Feb 13, 2011
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Posted on Jan 02, 2017
You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the self programming for about 6 to 7 minutes then select your temperature you want if it still does not work properly you may have a bad actuator or a bad connection at the actuator
Posted on Jun 03, 2009
No your thermostat is stuck open which will not hurt the engine. but needs to be replaced, the thermostat is what allows the engine get up to operating temp. before allowing water to flow through the radiator and when it is stuck open it doesnt allow the engine to reach operating temp. so the heater never gets hot. I hope that helps you out.
Posted on Nov 24, 2008
GM has a known problem with the electric actuators that operate the blend and temperature doors in the HVAC system. There are 4 or 5 of these in the typical system. Any can start sticking or binding and cause this problem. Sometimes they can be cleaned, or they might need to be replaced. Sometimes resetting the HVAC system controller by disconnecting the battery for 10 minutes, then reconnecting it, will correct the problem.
Posted on Sep 15, 2009
Feel the hoses going into the heater on the firewall. If one is hot and the other is cool, then the heater control valve is not working for whatever reason. Check the flow valve.
Posted on Nov 07, 2009
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