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Chevy Truck
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1987
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Astro Van M V6-262 4.3L
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Repair and Diagnosis
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Heating and Air Conditioning
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Component Tests and General Diagnostics
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System Diagnosis
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System Diagnosis - Heater - Front - Without A/C
System Diagnosis - Heater - Front - Without A/C
Figure 8-Heater Circuit Diagnosis:
