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Post Info TOPIC: 1999 Buick Regal No Heat

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1999 Buick Regal No Heat

Been in deep freeze here Pa.. Buick had no heat. Change thermostat thought was problem. Top off antifreeze bled air out system. Got some heat passenger side blow ice cold driver side. So I felt heater core hoses could not hold them being hot. I know this car has blend door servo AC / Heat. Had many problems with servos. Tried reset computer servos let heater go through reset. This heater is dual climate control. Switch back forth AC To Heat played with heat range take down 60 back up to 90. Now I got hot heat both sides. went work come home still works. Question should I just change blend door servo or was door stuck in open position ?

Drive it like you stole it'


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Posts: 1420

Could have very well been stuck.

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