HEATER CORE

1991 Cadillac Seville

Tiny

spear828

December, 24, 2010 AT 3:03 AM

How do I replace a heater core in a 1991 Cadillac Seville

FOUND 1869 RELATED QUESTIONS

1 Answer

Tiny

KHLow2008

December, 28, 2010 AT 6:14 PM

HEATER CORE
Removal & Installation

1. Disconnect negative battery cable. Partially drain coolant. Remove glove box and lower sound insulator panel from under right side of dash.

2. Remove programmer and disconnect electrical connectors from BCM. Remove BCM and BCM mounting bracket. Disconnect electrical connectors from PCM. Remove PCM and mounting bracket.

3. Remove heater core cover. Remove heater hoses from heater core. Remove heater core by removing two screws. Installation is reverse of removal. After installation, adjust Air Mix Valve.

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