Passenger side and all the rear vents work fine with lots of heat.
2001 suburban no heat to floor.
Could be as simple as a bad hose or connection.
The heat in the silverado is supplied by the hot engine coolant running through the engine cooling channels.
Loss of hvac system mode and or temperature control reroute wiring harness models.
If you are not getting heat in your suburban but the coolant seems to be making its way into the heater core then you may need a new heater core and thermostat.
Feb 18 2009.
Just noticed that the heater does not work.
This truck used to have burn your face off heat.
Defrost works dash vents work but set to floor heat the blower is working but nothing comes out on the floor.
Some of this coolant is diverted from the cooling system into a heater core.
1999 2002 chevrolet and gmc c k pickup models silverado and sierra 1999 2002 chevrolet and gmc c k utility models avalanche suburban tahoe yukon yukon xl denali 2001 gmc sierra c3 2002 gmc sierra denali.
References chevrolet silverado gmc sierra pick ups tahoe suburban yukon denali avalanche repair manual 1999 2006.
There could be several reasons why it s not working properly.
A c works fine for all vents in the summertime.
Heater doesn t blow on floor feb 19 2012 12 38am i have an 01 silverado with manual heat a c.
Is there a vacuum hose that gives problems on these models.
1996 gmc suburban heater blows on floor.
01 hvac.
Ac blows cold and strong.
2001 k1500 gmc heater does not blow to the floor anymore no matter what position the dial is put in it blows from gmc 2002 sierra c k1500 question.
And restarting the truck or drive with the windows down.
09 24 09 04 19 pm post 1777644 just bought a 2001 suburban.
New h2o pump hoses thermostat.
Defroster vents and floor vents all blow cold air brrr on the drivers side only.
And yes the temperature sliders are both all the way to the top max.
I changed the heater door control motor a couple of years ago because it used to get stuck in the open position causing us to pull over and reset the heater control by turning off the ign.
The heater in your chevy silverado supplies the heat to the cabin.