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Home >> Pontiac >> 1969 >> GTO Standard Trans >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Testing >> Testing Procedure

Testing Procedure

Follow procedure given under "CONTROL DIAGNOSIS GUIDE" on following pages, or follow procedure listed on plastic cards attached to tester to locate system malfunctions.

Fig 1: Temperature Door Adjusting Tool Installation
G09310884Courtesy of GENERAL MOTORS COMPANY
Fig 2: Pontiac Vacuum Control System
G09310885Courtesy of GENERAL MOTORS COMPANY
Fig 3: Grand Prix Vacuum Control System
G09310886Courtesy of GENERAL MOTORS COMPANY
Fig 4: Vacuum Valve
G09310887Courtesy of GENERAL MOTORS COMPANY
Fig 5: Control Panel Assemblies & Operations Chart
G09310888Courtesy of GENERAL MOTORS COMPANY