1993 Buick Roadmaster heater core replacement

Tiny
CASSONDRAWYMAN
  • MEMBER
  • 1993 BUICK ROADMASTER
  • V8
  • 2WD
  • AUTOMATIC
  • 233,000 MILES
How do I get the old haerter core out to replace it
Friday, March 13th, 2009 AT 5:15 PM

1 Reply

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
A/C-HEATER SYSTEM - MANUAL -1993 Buick Roadmaster
HEATER CORE

Removal & Installation
Drain engine coolant. Remove screw securing heater outlet pipe to cowl panel. Remove heater inlet and outlet quick-connect fittings. Remove A/C module lower evaporator case. Remove heater core mounting straps and screws. Pull heater rearward, working heater core tubes out of seal. Remove heater core. To install, reverse removal procedure. Refill cooling system with coolant, and check for leaks.
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Friday, March 13th, 2009 AT 5:36 PM

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