you probably need to flush the coolant system. GM claims that the coolant is good for a ridiculous number of miles, but it is not so. The coolant breaks down and forms large clumps which will clog up the heater core. You may need to flush several times to get it all out.
i just replaced the thermostat in 2004 Chevy truck heater works fine now
Heater Airbound? Heater control cable not working? Heater core plugged?
how do i change a heater core on a 2000 Chevy impalla
heater sensor circuit Chevy astro 2000
How much freon does it take for a 2000 Chevy full size truck
Your 2000 Chevy pickup truck is 14 years old as of 2014.
NO.
Yes
134r
Depends on which 2000 Chevy truck. There are many different models sold by Chevy. Also depends on miles on the vehicle and most important of all is the condition of the vehicle.
In the same manner as replacing the heater core. The complete dash assembly must be removed. Big job.
yes