NYfordguy, you might be interested in this method of access to the blend door www.heatertreater.net
Good find. Save that link. In some instances a leaking heater core will short out the actuator motor. This video shows what is involved in the removal of the actuator motor.
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Jean Marc Chartier
4.6 to 5.4 swap, M5OD 5speed w/Modified Hurst short throw, Warn XD9000i, Troyer E-fans, Procharger @12psi, Troyer tuned. ;)
NYfordguy, you might be interested in this method of access to the blend door www.heatertreater.net
wish I knew about him when I replaced my blend door. I wouldn't have hacked my **** up like he did, but I would have bought his improved door.
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^dirtyd88 is the man^
1999 F150 4x4 5.4, T3 front end replacement (the cow killer), T3 straight rear bumper 8" drop, Skyjacker AAL, T-bar maxed, Toyo Open Country, AT 285/70/17, Flowmaster true dual exhaust, Kobalt skinny truck box, Icom IC-V8000, Cobra CB radio, tint, Yeah that about covers it...
Thanks Quintin,
Am in the middle to trying to get my Blend Door replaced. You're post is helping a lot. Still a lot of learn as I go on items in my '99 F150, but it would have been a nightmare without your help.
The vid at the site for the cut and fix(altenate) method was a help, in that, I used it to get the vent off the bottom and remove the actuator to see if I got bits and pieces of my blend door shaft. Sure enough.. what was left of the shaft fell out in my hand. Not one to butcher up a car when it is just labor needed to do it right, I jumped off into it. Only working in cool evenings, 3 days and dash about to come out. But, I have learned that many of the screws I took out were not required and reinstalling the Dash will go much quicker.
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Last edited by Eight; 07-03-2009 at 07:29 PM.
Reason: clarification
LOL, I will..
I meant that the removal wasn't required to get the dash out and I wasted the time taking them out.. but for sure will put em back..
in fact I have.
Was a success in the end. A lot of labor but saved over $1,000 and all works..
I took the dash apart today on my 2003 Expedition and removed the acuator. I took it apart and found broken plastic gears inside. Verified blend door functioning properly and put it all back together. I am glad I did not have to take the plenum apart because the way Ford made it I would have had to remove the whole thing and disconnect the heatyer core lines and evaporator lines. Took me about 14 hours start to finish but took breaks for lunch and dinner and had to run to the parts store. Thanks for the pictures. Although they did not match it gave me a good idea what to look for and where.
i have been on the blend door and temp control not working discussion threads. I have opened the lower dash to access the acuator and it is working. With a mirror i don't see any cracks around the area that the acuator slides into. Before tearing more apart is there a way to see if the core is plugged? I have run water through it and it seem's to be fine. I am just disconnecting the hose that goes from firewall to front of engine and forcing water through it. Any suggestions? I don't want to do the blend door unless i am sure that is it. Thanks for the help.
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