Good morning, inorder to replace the heater core, the entire dash has to be removed as well as the freon from the a/c system . Its a lengthy process and requires the proper a/c recovery and recharging mashine to perform the repair.
Disconnect the automatic transmission shifter interlock cable from the column, if equipped.
CAUTION: Do not turn the clockspring more than 90° or damage to the clockspring may occur.
CAUTION: Do not remove the brake lamp switch. This is a one time component and is not intended for reinstallation. If the brake lamp switch is removed it must be discarded and replaced with a new switch.
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