G 3500 1 Ton Van V8-454 7.4L (1989)
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Heater Core: Service and Repair
Primary (Front) Heater Core
Heater Distributor Case and Core Replacement
Remove or Disconnect
Figure 5 - Blower Motor Assembly - Component View
Figure 6 - Heater Hose Routing - 4.3L, 5.0L, and 5.7L Engines