Test A: Air Delivery Improper
WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
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For circuit reference, see CONNECTOR IDENTIFICATION and/or WIRING DIAGRAMS
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Definition: Air does not flow correctly from the air distribution outlets.
- If review of system operation has been performed, go to next step. If review of system operation has not been performed, go to DESCRIPTION and OPERATION .
- Turn ignition on. Place blower switch in OFF position. If blower motor is off, go to next step. If blower motor is not off, go to TEST D: BLOWER MOTOR ALWAYS ON .
- Place blower switch in each speed position. If blower motor operates at all, go to next step. If blower motor does not operate, go to TEST E: BLOWER MOTOR INOPERATIVE .
- If blower motor operates correctly for each speed position, go to VACUUM CONTROL SYSTEM DIAGNOSTICS under SYSTEM TESTS.