Thread: Heater airflow significantly weakens when temp is set to ‘hot’

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  1. #1 Re: Heater airflow significantly weakens when temp is set to ‘hot’ 
    Killa Bee Scottydoggs's Avatar
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    pretty sure the vac air flops things only move where the air comes from, the actuators control the temp of the air coming into the car. turn the heat to max temp and then remove the actuator on the side thats not right then turn it by hand to see if it turning all the way.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  2. #2 Re: Heater airflow significantly weakens when temp is set to ‘hot’ 
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    My actuators are electrical and look like those 03 2003 Pontiac Grand Prix Air Flap Actuator - Climate Control - Replacement, Dorman - PartsGeek
    I could see that they move all the way in both directions - there are marks on the housing and on the turning thing (a metal pin). Were you talking about those ones or something else?
    Thank you scottydoggs!
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