Operation CHARM
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Toyota Truck
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1989
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Van Wagon 2WD L4-2237cc 2.2L (4Y-E)
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Repair and Diagnosis
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Heating and Air Conditioning
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Automatic A/C System
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Improper Shifting of Damper Doors
Improper Shifting of Damper Doors
1.
Control damper or rod improperly adjusted.
2.
Defective vacuum circuit.
3.
Defective dampers.
4.
Defective vacuum valves.