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Re: 1988 Cadillac DeVille HVAC Nightmare
Posted to Technical Discussion Forum on 10/30/2003 2 Replies

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Try bulletin T-89-95. If the BCM PROM ID is 22 or 23 it should be updated.

If that doesn't help, let the system set long enough (overnight is best) to let the temperatures throughout it equalize, th... Login to read more.

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