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Heater Core / Blend Door Replacement (How To Guide With Pictures)
I'd like to thank those that have taken time to write much information about heater core and blend door replacement. I decided to tackle this job myself and I found it to be easier than what I had expected. The time involved was fairly significant, but the overall difficulty of the job is something that anyone with a good socket set and assortment of other basic tools can tackle... saving hundreds of dollars in the process!
Pending on your year model there could be a couple of steps that could be differed a little. The document below opens with MS WORD and can be printed out and taken with you to your truck during repairs.
Excellent job of documenting the procedure. Nice photos and illustrations.
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Scott
'84 F150 Super Cab XLT, 351W 351 cubic inches of pure manly motor!
'99 F-150 Super Flairside, 5.4L Windsor
'02 F-350 Super Crew Cab Dually, 7.3Ltr Powerstroke
'06 F-150 Super Crew Cab, 4.6l
"If it looks impossible, it probably is." - Me
Does sweating palms mean something?
Man this is great !!!! Really appreciate the step by step. I will be starting this today and it looks like it should go pretty good. (Ha! Ha!)
You too, huh? I just drove 350 miles north to pick up a friend - and with this cold spell I had no heat for the entire trip. It made the drive, and will make the drive back, today, interesting.
I moved to south Florida for a reason - and that reason is failing me; I guess moving as far south as I could go still didn't get me out of having to fix the blend door...
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1999 F-150 XL, Extended Cab, Long bed, 4.6L, 4x4, M5OD (geez, the truck's description is just about as long as the truck itself! )
Aight it's done! This guide was PRICELESS! I would never have been able to do this myself without it. There were some minor variations between some of the pics and my truck but nothing crazy.
Replaced heater core, upper and lower hose, thermostat, and flushed the cooling system. Also replaced all my instrument cluster light bulbs while I was in there since they were going out!
Took about 15 hours to do everything :/ ... didn't set a speed record but it is all done and no leaks or issues so far!
Thanks again for the guide!
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1998 F150 5.4L Lariat 3.55 E4OD 4x4 OffRoad xcab - 249k miles @ Dec 23, 2012
2006 F150 5.4L FX4 3.73 LS 4D - 68k miles @ Dec 23, 2012
I'd like to thank those that have taken time to write much information about heater core and blend door replacement. I decided to tackle this job myself and I found it to be easier than what I had expected. The time involved was fairly significant, but the overall difficulty of the job is something that anyone with a good socket set and assortment of other basic tools can tackle... saving hundreds of dollars in the process!
Pending on your year model there could be a couple of steps that could be differed a little. The document below opens with MS WORD and can be printed out and taken with you to your truck during repairs.
Thanks for the pictures with the instructions. My friend has a '99 with the door stuck in the cool position. He had been quoted $1500 to repair it "properly". From looking at the picture above #38 instruction showing what the door looked like and where it was positioned we decided to drill a 1/4" hole just to the right of the triangular protrusion next to your word "cut". I then stuck a long thin screwdriver through the hole, located the foam strips and the door itself. With some gentle nudging, it unstuck and opened to the heat position. A piece of black electrical tape over the hole finished the "repair". Cost 0$ Without your picture this would not have been possible. Again, many thanks!
Thanks for the pictures with the instructions. My friend has a '99 with the door stuck in the cool position. He had been quoted $1500 to repair it "properly". From looking at the picture above #38 instruction showing what the door looked like and where it was positioned we decided to drill a 1/4" hole just to the right of the triangular protrusion next to your word "cut". I then stuck a long thin screwdriver through the hole, located the foam strips and the door itself. With some gentle nudging, it unstuck and opened to the heat position. A piece of black electrical tape over the hole finished the "repair". Cost 0$ Without your picture this would not have been possible. Again, many thanks!
My Ford dealership would have fixed it "properly" for about $600.00
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My advice is just advice..Its free "IF THAT DONT FIX IT, SOMETHING ELSE WILL"
The most expensive tool in your box is "impatience"
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