08 screw heater

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Dec 9, 2012 | 05:01 AM

UncleTom

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08 screw heater

Hi all, i have an 08 that the heater either works all hot or cold. It seems that when i try to control the temp it isnt consistent. It will be on hot,**** turned all the way the right in the red. Great, it gets too warm in the truck so turn it down a little. Then it is too cold. I only turned it down a little, not even in the blue zone yet. I turn it up alittle and it is still cold. Turn it all the way up and it is too hot again. What is up with this. I hope it isnt the blend door syndrome. The truck only has 30,000 on it. Thanks

Dec 9, 2012 | 09:50 AM

danorules

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From: manchester,ct

Looks like the blend door but it shouldn't be too bad https://www.youtube.com/watch?v=0di2...e_gdata_player

this video makes it look real easy. I plan on doing the same thing next weekend. I will let you know how accurate the video is

Dec 9, 2012 | 12:28 PM

UncleTom

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Thanks danorules. That sure does sound like the problem. Doesnt look that hard either. Yes, post back when you get yours done.

Dec 9, 2012 | 01:41 PM

danorules

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From: manchester,ct

I just ordered the blend door, $21 from local napa, and will let you know the troubles I encounter

Dec 9, 2012 | 05:18 PM

UncleTom

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I thought you might need the actuator instead of the blend door.

Dec 9, 2012 | 05:21 PM

danorules

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From: manchester,ct

I got the actuator, must have forgotten to add that word lol

Dec 9, 2012 | 07:02 PM

18wheelin

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Joined: Mar 2009

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From: Horicon, WI

I have this problem on my 08. I have just dealt with it because I expected it to cost more. Now that I know it only about $20 I will get this job done.

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Dec 14, 2012 | 07:41 AM

danorules

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Joined: Jan 2010

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From: manchester,ct

Ok all done. I started at 7:30 and 1 hour later it is fixed and put back together.the job is relatively easy but a little frustrating due to the confined area to work. If you have a short 8mm gear wrench I recommend bringing that to remove the 3 bolts securing the actuator. I used a regular short wrench and it went ok. It is really a straight forward parts change and the video was spot on (minus the anti Ford chatter) I wish I did this last winter when it started.

Good luck