1998 Cadillac STS No Heat on passenger side

1998 CADILLAC STS
62,000 MILES • V8 • FWD • AUTOMATIC
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The heater on my Caddy starts out ok when first turned on, but within about 30 seconds, it blows out cold air.

I was going to flush out the anti freeze, but discovered that the passenger side, (which has its own controls) if turned on blows nice hot air, all the time while the driver side continues cold.

Please help.

Thanks
May 16, 2008 at 10:59 AM
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LEGITIMATE007
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sounds like the mixing doors may be stuck they would have to go behind the dash and fix it.
May 17, 2008 at 12:21 AM
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BUZZSAW
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[quote:d2800e8889="legitimate007"]sounds like the mixing doors may be stuck they would have to go behind the dash and fix it.[/quote:d2800e8889]

the mode actuator is down by the gas petal easy to get too
May 17, 2008 at 8:58 PM
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