Rear heat

[Jer-Z-Devil]

The blower works fine but the heat in the rear just stopped working. Its 20° out today and need to get it fixed ASAP.

Thanks for any help.

 

[Big Mama]

Most likely the blend door which is by the fan. To check to see if the heater core is working feel the inlet and outlet hoses. I think your truck has a 2nd one behind the controls

 

[Doubeleive]

if you pull the rear passenger panel off then you can see the blower and 2 door actuators, the rear actuator closest to the blower motor is the one that controls hot cold the one closer to the front controls up/down. on my nbs the dealer wanted $127 fleet price, if you can wait and order it online you can get it cheaper. sometimes the aftermarket ones are darn near the same price locally.

 

[corvette744]

If the actuators are fine then its most likely the HVAC control module which is very common.Mine went out 2 weeks ago-watched a you tube video and easy fix.