K 1500 Truck 4WD V8-350 5.7L (1986)
Heater Core: Service and Repair
Heater Distribution Case and Core Replacement
HEATER DISTRIBUTOR CASE AND CORE REPLACEMENT
Heater Blower Case - Exploded View
REMOVE OR DISCONNECT
1. Battery ground cable.
2. Heater hoses at the core tubes.
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Drain engine coolant into a clean pan.
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Plug the core tubes to prevent spillage.
3. Nuts from the distributor duct studs that project into the engine compartment.
