Workshop Repair and Service Manuals GMC SIERRA
Articles

HVAC

Air Temperature Description and Operation      The air temperature controls are divided into 7 areas: HVAC Control ComponentsHeating and A/C OperationAuxiliary Heating and A/C OperationAutomatic OperationAuxiliary Automatic OperationEngine Coolant A/C CycleHVAC Control...
Air Delivery Description and Operation - part 5      Inside Air Temperature SensorAmbient Air Temperature SensorLower Left Air Temperature SensorLower Right Air Temperature SensorUpper Left Air Temperature SensorUpper Right Air Temperature SensorRegulate blower motor...
Air Delivery Description and Operation - part 4      The motor moves the mode door tothe desired position. Front Defrost When defrost is selected, the A/C compressor is activated.The A/C compressor clutch will engage when ambient temperatures areabove 3°C (38 F). The blower...
Air Delivery Description and Operation - part 3      The blower motor control module is an interface between theHVAC control module and the blower motor. The blower motor speedcontrol, battery positive and ground circuits enable the controlmodule to operate. The HVAC control...
Air Delivery Description and Operation - part 2      As theactuator shaft rotates the changing position signal is sent to themodule. Once the position signal and the commanded value are thesame, the module changes the control signal to2.5-volts. Auxiliary Mode Actuator The...
Air Delivery Description and Operation      The air delivery description and operation is divided into 7areas: HVAC Control ComponentsAir SpeedAuxiliary Air SpeedAir DeliveryAuxiliary Air DeliveryRecirculation OperationAutomatic OperationHVAC Control Components HVAC...
Fastener Tightening Specifications - 4WD Driveline Control      Fastener Tightening Specifications Application Specification Metric English Auxiliary Air Temperature Actuator Screws 1.6-Y 14-lb-in Auxiliary Blower Motor Processor Screws 1.6-Y 14-lb-in...
Fastener Tightening Specifications - 4WD Driveline Control      Fastener Tightening Specifications Application Specification Metric English Air Temperature Actuator Mounting Screw 1.6-Y 14-lb-in Mode Actuator Mounting Screw 1.6-Y 14-lb-in Overhead Console...