Chevrolet C/K truck mode and blend door actuator replacement
Here's a video covering a common repair issue on GM C/K series trucks.
If you are having problems with no heat, no cooling or air coming out from the wrong place and you've confirmed that the control panel isn't burnt up, then chances are you have a failed actuator.
Air door actuators are cheap and fairly easy to replace on these vehicles. However, ensure that the control panel IS functioning and sending commands to the suspect actuator before condemning it.
There are three actuators which do three different things, so make sure you have identified which one is defective before buying a replacement.
1. Mode door: Mounted on end of case near driver's right foot. Controls where airflow comes out at.
2. Blend door: Mounted on rear(tailgate side) of case roughly behind the ashtray. Controls how hot or cold air is.
3. Recirculate door: Mounted on top of case, very hard to access. Controls whether air is fresh or recirculated. Most people don't bother replacing it.
WARNING: DO NOT "TEST" ACTUATORS WITH THEM DETACHED FROM THE HVAC BOX!!! THEY WILL OVERTRAVEL AND BE OUT OF INDEX AS YOU'LL SEE IN THE VIDEO. YOU CANNOT REPAIR THIS EASILY, SO ALWAYS HAVE THE ACTUATOR MOUNTED TO THE BOX BEFORE ANY KIND OF TESTING TAKES PLACE.
ALSO, INSPECT THE FLAPS THEMSELVES TO ENSURE THAT THEY ARE NOT HANGING UP. AS WE ALL KNOW ANYTHING IS POSSIBLE WITH GM.
1999 Tahoe HVAC Head Unit Replacement - EricTheCarGuy
1999 Tahoe HVAC Head Unit Replacement - EricTheCarGuy
Welcome back to another episode of ETCG where we boldly go where we haven't
before, taking apart the dash on this 1999 Chevy Tahoe. To be honest it
was easier than I thought, if I were to do it again I would try first
cleaning the switch and if that didn't work I would just replace the switch
for the problem this truck had. I'm learning things here too you know.
Click below and Stay Dirty
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Chevy Blend Door Actuator Replacement - Part 1
This video describes the basic task of replacing one of the cooling system
blend door actuators. As described in the video, we have a 2010 Traverse
that all of a sudden started only blowing HOT air into the passenger seat.
After days of internet study, I found that it was most likely the "blend
door actuator". I found a cool parts diagram of the AC system, so knew
where to look. After finding the bad actuator, I removed it, ordered the
part, and am ready to install the working part.
A C Switches
A/C pressure switches are pretty straight forward. They are both,
electrical switches and pressure transducers. Their purpose as
electrical switches are to interrupt the circuit. There are many, many
different arrangements that these switches can be configured in an
electrical system. So, always be sure to review the diagram for the system
you are working on.
Chevy blend door actuator driver side
The internals of Chevys, DRIVER side blend door actuator. Used in my case
for a 2005 Avalanche with dual zone auto HVAC. The actuator was "clicking"
and occasionally only hot air would come out until the truck was restarted.
$60ish on Amazon.
How To Fix A Slow Power Window
How to fix slow power windows that get stuck or take forever to go up or
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Door Hinge Pin
As trucks get older the doors begin to get hard to close. Often times the
hinge pins are simply worn out. There not that hard to replace. The kit
is pretty cheap and there is a tool that doesn't cost much either. You can
try to get the spring back in place without the tool, but after you work
on it for an hour you'll wish you had the too.
Motorized iPad 2 Install in Silverado
I decided to modify my iPad install to house an iPad 2. In order to
accomplish this, I had to cut the air vent, move the AC controls down and
fabricate a pod to house the AC controls and Kenwood headunit. I used a
linear actuator to motorize the unit. The headunit has Bluetooth and USB
input for hands-free calling and music when I don't have the iPad in the
Chevy Trailblazer (PROBLEM) with ac on hot air on passenger side, How to fix it.
Hi ok i was having a problem whit this 2004 trailblazer it all stared
when i disconected the battery and i putted back on Wiht ac on the 2 vents
on passinger side hot air was coming out so i desire to do the work by
myself te problem was that the ac actuator on the passinger side went bad
most of the times when ac actuators fail they close the vent doors Mine was
blocking the cold air, I put a new one and problem solve, you can see the
white door into the top vent one on each side in this trailblazer
controled by one actuator on each side as wall,for exenple if hot air is
coming out on driver and cold on passinger side you know the bad is on the
drivers side same direction as the other one,Now if no cold or hot air
blowing out on all front vent only on windsheild and feet that is the main
door actuator location there are 3 on driver side is the one on the middle
this one controls the 2 door on the very top they works as one when this
actuator is bad blocks the air on all front vents even on cold or hat
to solve this problem soon very sinple Unscrew the black lid cover,to get
more room ,remove feet vent pipe as well under steering wheel,with a
flashlight you will se those 3 actuators olmost in line, , Unscrew the
middle one actuator marked whit (HL) letters plus numbers Unplug the
electric cable, By not longer been there the ac door will be open and ther
you go air blowing out on all front vents, now take the door actuator to
the autoparts to get the exact one replace it ( inportant to replace it
follw the instructions) Now not replaceing this part you will not be able
to move air flow to all direction, for all this job you do not need to
take the whole dash out as i did. NOTE, some times those ac actuators they
still work you need todo a recalibration but most of the times are bad i
hope this helps someone.
Ford Explorer 02-08 HeaterTreater blend door repair video
Ford Explorer, Mercury Mountaineer 02-08 HeaterTreater diagnosis/repair
video. Shows a relatively easy method to access the blend door actuator
motor and evaluate HVAC problems. http://www.heatertreater.net web site
provides additional repair information.