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S-10 & Blazer 1982-2005
The S-10 and Blazer was arguably the most versatile and accessorizable mid-size truck and SUV on the market.
Platform: S/T-series & GMT 330

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Old 04-23-2011, 02:48 PM
CF Active Member
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Join Date: Oct 2008
Location: Colchester, UK
Posts: 128
Default Blazer Blend door

My 99 Blazer heater has been on full all winter, ok it kept me nice and warm during the cold weather, but now its turning warmer it's too hot inside. I have found a replacement blend actuator, when I try it in the vehicle but not fitted when the ignition is turned on the spindle travels to one stop then back to the other. If I adjust the heating controls from hot to cold and back there is no movement. Is this right?
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Old 04-25-2011, 04:58 AM
CF Active Member
Thread Starter
Join Date: Oct 2008
Location: Colchester, UK
Posts: 128
Default Sorted

Think I have sorted this, found on the internet that if you check the actuator without it fitted it will turn both ways but stop on the mechanicle stops on the unit. These stops take it outside the control of the computer. When it is fitted into the HVAC unit the blend door travel stops it first. Just got to see if I can fit it in such a confined space, don't really want to have the dash taken out again.
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10, 1999, 2005, 99, ac, access, blazer, blend, chevrolet, chevy, door, heater, location, s10, vent

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