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Heater Core Replacement

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Old Apr 14, 2010 | 04:39 PM
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Heater Core Replacement

I have a 99 ford F150 4x4 lariet with the 4.6 L engine

Heater core is leaking and i just cant afford the $700.00+ to have it done.

I really need to fix this as it is getting worst. I have had it replace once several yrs ago and know that the dash must come out along with lots of trim work etc. I guess what I really need help with is dash removal...
Can Anyone provide detail instructions on how to do this safely and correctly.
I also have another problem with the heating/AC system...
It doesnt always cool when ask or heat when ask.... it will do the opposite..... Could this be the door? or maybe something else?
 
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Old Apr 14, 2010 | 08:40 PM
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fFirst drain coolant from the cooling system, next, remove the heater coolant hoses, and then remove all the heater box mounting bolts (some are inside and some are in the engine compartment.) Remove the heater box (housing). You may have to loosen the dash to remove the heater box. Then disassemble the box to install the new heater core. Reverse the steps to install.
 
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Old Apr 14, 2010 | 08:46 PM
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???

Originally Posted by BigGrizz76
fFirst drain coolant from the cooling system, next, remove the heater coolant hoses, and then remove all the heater box mounting bolts (some are inside and some are in the engine compartment.) Remove the heater box (housing). You may have to loosen the dash to remove the heater box. Then disassemble the box to install the new heater core. Reverse the steps to install.

.... I appreciate your efford to help.... but all u really provided was common sense steps...
 
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Old Apr 14, 2010 | 08:56 PM
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From: Hernando Ms
He has given you the basics,if you really want to tackle this,you will need to get a FSM(Factory Service Manual) to do it.A Chiltons,or Haynes manual might get it done,but in order to pull all the dash components properly,youll need to have the book specifically for your truck.
 
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Old Apr 14, 2010 | 09:04 PM
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From: Colorful Colorado
since your google must be broken and even though you were kind of rude, I found this on one of my googling efforts:

http://my.voyager.net/~sscully/F-15097H ... xp_002.doc

 
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Old Apr 14, 2010 | 09:05 PM
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N5926g....Yes I agree with ya ! some people just like to be heard whether they help or not...
Haynes is useless for almost any repair and definitely this one.....
I'm gonna have to do this one way or the other....the leak is getting worst..... book calls for 7 hours... I figuring 10hrs or more if i do it ... LOL
 
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Old Apr 14, 2010 | 09:08 PM
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Big... Sorry you tool offense..... but sorry you just didnt help...
 
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Old Apr 14, 2010 | 09:26 PM
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do a search of heater core replacement on here there is an excellent write up on here somewhere with about a 50 or 60 step writeup with pics maybe someone will remember it and post it for ya good luck man i remember looking at the pics and it looks like a real PITA
 
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Old Apr 14, 2010 | 09:29 PM
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I replace my previous post with this hope it helps ya https://www.ford-trucks.com/forums/7...-pictures.html
 
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Old Apr 14, 2010 | 09:47 PM
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From: Colorful Colorado
YouTube - Ford Expedition heater core replacement

this is quite the job....very good play by play
 
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Old Apr 14, 2010 | 09:57 PM
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found his..

I found this link, and it does give some very useful instructions...

I take no credit nor do i endorse this link..... :P


http://my.voyager.net/~sscully/F-150...50_Exp_002.doc
 
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Old Apr 14, 2010 | 09:59 PM
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Thanks Big for the Video
 
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