How do I replace my heater core on a 1992 gmc safari.
Jul 15, 2011 at 5:31 PM
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ASEMASTER6371
✓Experienced Mechanic
52,796 POSTS
REMOVE OR DISCONNECT
Coolant from the radiator.
Heater hoses.
Lower filler panel from in front of the heater assembly.
Screws.
Upper air distributor duct.
Screws.
Lower air distribution duct.
Screws.
Core cover panel.
Screws.
Core.
Seals.