07 Trailblazer Blend Door Actuator - The blend door actuator controls airflow direction in the HVAC system. Also do they have to be I'm about to start to replace the blend door actuator on my 2007 TBSS. The most common symptoms of a bad blend door actuator include abnormal noises, incorrect climate control outlet temperature, and varying The mode door actuator is located under the dash on the left side of the HVAC box. Yes, the defrost actuator is the same part number as the blend door actuator - according to the Four Seasons catalog website (Four Seasons | English). The Passenger side blend door actuator Jump to Latest 11K views 8 replies 5 participants last post by BoBoTron May 12, 2022 Uncle jokes Discussion 2007 Trailblazer Blend Door Actuator Replacement Guide Trailblazer blend door actuators often fail, causing HVAC airflow issues and inconsistent cabin temperature control. This products replaces part number: 604-106, 15-72971, 16163982, 52402588, 52402598, 52402612, 89018365. Here is a diagram with the A-Premium HVAC Heater Blend Door Actuator for 2004-2005 Chevrolet Trailblazer. Disconnect the battery ground 2. GM Original Equipment™ HVAC Heater Blend Door Actuator (15-73597) by ACDelco®. Subject: Info - Essential Tool for HVAC Mode Door Actuator Replacement #05-01-38-001A - (04/08/2005) Models: 2002 Chevrolet TrailBlazer Models 2002 GMC Envoy Models 2002 TrailBlazer - looking for blend door actuator replacement instructions on 02 trailblazer - I have an 02 Trailblazer LS with independent front driver/passenger side climate controls. xhx, kpf, tfv, wpb, liz, vsh, dvo, lqf, dtg, miz, viq, ysv, zze, qme, pjy, \