Symptoms. GMC Truck Savana 2000

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2000 🢒 Savana 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Symptoms

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to:

•	HVAC Blower Controls Circuit Description

•	HVAC Blower Controls Circuit Description - Auxiliary

•	HVAC Compressor Controls Circuit Description

•	HVAC Air Delivery/Temperature Control Circuit Description

•	Inspect for aftermarket devices which could affect the operation of the HVAC System. Refer to Checking Aftermarket Accessories in Wiring Systems.

•	Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

•	HVAC Compressor Clutch Does Not Engage

•	HVAC Compressor Clutch Does Not Disengage

•	Blower Motor Inoperative at Any Speed

•	Blower Motor Low Speed Inoperative

•	Blower Motor Inoperative Med-1

•	Blower Motor Inoperative Med-2

•	Blower Motor Operates at High Speed Only

•	Blower Motor High Speed Inoperative

•	Blower Motor Always On

•	Auxiliary Blower Motor Inoperative at Any Speed

•	Blower Motor Inoperative at Any Speed - Auxiliary Air Conditioning (A/C)

•	Auxiliary Blower Motor Low Speed Inoperative

•	Blower Motor Low Speed Inoperative - Auxiliary Air Conditioning (A/C)

•	Auxiliary Blower Motor Medium Speed Inoperative

•	Blower Motor Medium Speed Inoperative - Auxiliary Air Conditioning (A/C)

•	Auxiliary Blower Motor High Speed Inoperative

•	Blower Motor High Speed Inoperative - Auxiliary Air Conditioning (A/C)

•	Auxiliary Blower Motor Always On

•	Blower Motor Always On - Auxiliary Air Conditioning (A/C)

•	Auxiliary Blower Motor Operates at High Speed Only

•	Temperature Actuator Inoperative

•	Temperature and Mode Valves Inoperative-Auxiliary

•	Temperature Valve Assembly Inoperative - Auxiliary

•	Mode Valve Only Inoperative - Auxiliary