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.
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.
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Check out my Website!!... https://sites.google.com/site/nthefastlane4evr
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How To Install Replace Air Temperature Door Actuator Explorer Mountaineer 98-01 1AAuto.com
http://www.1aauto.com/1A/HeatingandACControls/Ford/Explorer/1AHCX00034 1A Auto shows you how to replace the vent door actuator on a 1998 Ford Explorer. This process is the same for 1998-2001 Ford Explorer, 2001-2005 Sport Trac, 2001-2003 Explorer Sport, 1998-2000 2005-2007 Ranger, 1998-2001 Mercury Mountaineer, and similar for 2002-2004 Ford Expedition and 2002-2004 Lincoln Navigator.
02 Ford Explorer Heat Blend Door Actuator Simple Fix - No Tools Needed
This is a 02 Ford Explorer that has a broken and worn heat blend door actuator. The labor at a dealership with parts is approx $700-800 if you take it to the pros, The cost of the part is approx $65.00 if you want to do it yourself, or you can give this a try and save even more.
The part I will be referring to later in the video is a plastic flap, which is approximately 3" long and is located almost directly behind the wires you see in the video along the edge of the wall compartment. It needs to be pushed down, and you will hear it as it reaches the correct position.
Once you locate this, it will only take a few seconds to change in the future.
The blend door will easily work with the air condition control knobs, but once you switch it to cold air, you will need to switch this back manually as in the video.
Hope this tip helps.
Unclogging A Heater Core - EricTheCarGuy
Unclogging A Heater Core - EricTheCarGuy
There is a lot more here than meets the eye, the original video cut was about 16 min long. As you can see we did have some fun. I may post some of the out takes at some time in the future. I thought you might want to cover the process here and that's what I went for.
Thanks to http://www.youtube.com/user/Davidsfarm for the procedure for this and hopefully for letting me post this as a video response to his video.
If I think of anything else I think you need to know with this I'll post it later, for now I have to run.
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Ford Explorer 02-08 HeaterTreater blend door repair video
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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.