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Old 01-17-2011, 08:03 PM   #1
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Default '96 LSS Oldsmobile heater

The heater in my LSS is blowing hot air until my Temp display starts blinking then it switches to cold air. Sometimes its both side, then sometimes it alternates to each side. Could anyone help me figure out what'* going on because it sure is getting cold driving to work!
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Old 01-17-2011, 08:30 PM   #2
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One more thing. The car has the electronic climate control. Back in the summer when I would start my car with the ac on it would blow out hot air briefly, even after the car had been ran plenty. Through the first part of winter, no problem. Then the heat would blow cold air on the pass. side and hot on the driver side. Now it'll blow hot briefly then blow cold everywhere.
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Old 01-25-2011, 04:25 PM   #3
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sounds like either a blend door issue, or your actual climate control (in the dash, where your temp is displayed) is on the fritz.

if your problem was with the HVAC control module like I had (handles the electric to vacuum system) your heat would constantly come out the defroster vents; it'* the default setting when the internals get junked.

if your problem was with a heater core or something physical like that; you'd smell antifreeze, lose coolant, and/or have no heat.

i think you need to scavenge car-part.com, to find a new dash bezel (it'* pretty easy to remove/replace, just make sure you un-bolt your wood trim from inside the glove box - the rest of it un-clips but it'* easily bent so be careful. only 2 screws holding your guage bezel on, you have to be careful and un-plug the headlight switch, and old climate contro, and gently work it out of there.
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