Heater core

Tiny
BIGDADDY1993
  • MEMBER
  • 1993 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
How do u find and replace a heater core on a 1993 grand pirx
Saturday, December 18th, 2010 AT 12:52 AM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
https://www.2carpros.com/images/external/42188668.gif

REMOVE OR DISCONNECT

1. Negative battery cable.
2. Drain coolant system.
3. Upper weatherstrip from body.
4. Upper secondary cowl.
5. Lower secondary cowl upper nut.
6. Heater hoses from core.
7. Blow out residual coolant from core using shop air. This will prevent coolant leakage into the passenger compartment.
8. Lower right sound insulator panel.
9. Rear seat duct adapter.
10. Heater floor duct.
11. Lower left sound insulator panel.
12. Core cover screws and cover.
13. Core retaining bolt and core.

INSTALL OR CONNECT

1. Core and attaching bolt.
2. Core cover and attaching screws.
3. Lower left sound insulator panel.
4. Heater floor duct.
5. Rear seat duct adapter.
6. Lower right sound insulator panel.
7. Heater hoses to core and tighten clamps to 1.7 Nm (15 lb in) .
8. Upper nut securing lower secondary cowl panel.
9. Upper secondary cowl panel.
10. Refill coolant to proper level.

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Friday, November 17th, 2017 AT 2:10 PM

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