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1989
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Chevy Van G30, 4.3 Z
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Repair and Diagnosis
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Heating, Ventilation & A/C (HVAC)
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HVAC Control Systems
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Heater System
Heater System
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Model Identification
Description
Operation
Temperature Control Lever
Mode Control Lever (Standard System)
Mode Control Lever (Optional System Astro/Safari, "C", "K", "S" & "T" Series)
Blower Control
Auxiliary Heater Blower Switch
Adjustments
Control Cables
Blazer/Jimmy, "R" & "V" Series
Astro/Safari & "G" Series
"S" & "T" Series
Removal & Installation
Control Panel
Removal & Installation (Astro/Safari, Blazer/Jimmy, "C", "K", "R" & "V" Series)
Removal & Installation ("G" Series)
Removal & Installation ("S" & "T" Series)
Heater Core
Notes
Removal & Installation (Astro/Safari)
Removal & Installation (Blazer/Jimmy, "R" & "V" Series)
Removal & Installation ("C" & "K" Series)
Removal & Installation ("G" Series)
Removal & Installation ("S/T" Series)
Blower Motor
Removal & Installation (Astro/Safari)
Removal & Installation (Blazer/Jimmy, "C", "G", "K", "R" & "V" Series)
Removal & Installation ("S" & "T" Series)
Control Cables
Removal & Installation (Astro/Safari, "S" & "T" Series)
Removal & Installation (Blazer/Jimmy, "C", "K", "R" & "V" Series)
Removal & Installation ("G" Series)
Wiring Diagrams