answersLogoWhite

0


Best Answer
Copy

The heater core is difficult to change on the Ford trucks. They have it buried in the plenum box and you have to remove the steering wheel, steering column, dash, evacuate the refrigerant system, drain the radiator, and remove the plenum box to get to the core. Replacing the core is easy, getting to it is a day's work.

You need to be sure that the heater core is really the problem before tackling this job. If you have a pool of coolant on the floor, you'll have to go after the core. If the problem is lack of heat, there are some things you need to eliminate before tearing into the truck. You need to make sure that coolant is flowing through the core. Check the temperature of the heater hoses going into the firewall when the engine is cool and see if they warm up together as the engine warms up. If both hoses get hot at about the same rate, this is a good indication that coolant is flowing through the core. You can also remove the hoses and flush the core with a water hose splice from Home Depot and a water hose. Water should flow unobstructed through the core.

If it appears that coolant is flowing and you don't have obvious leaks, the next step is to check the blend door. This door controls the air flow through the heater core and failure is common on Ford trucks. When the door breaks, it can block the flow of air through the core and kill heat and will also have an impact on AC. If the system seems to work intermittently, it's a good indication that the door is broken and rattling around randomly blocking or opening the passage to the core.

For diagnostic information on how to check the operation of the blend door and a cheap easy fix, check the heatertreater listing on Ebay or the web site at heatertreater.net. The dealer fix for the blend door is basically the same procedure for replacing the heater core, so it will be expensive. The HeaterTreater alternative will solve the problem at a fraction of the cost and work and is well within the capability of the average shade tree mechanic.

User Avatar

Wiki User

βˆ™ 2008-11-09 02:34:34
This answer is:
πŸ€“
🀯
πŸ€”
User Avatar

Your Answer

Loading...

Related Questions

How to remove heater core on F150 Ford Pick up?

what is the year model? 1995


How do I replace the Block Heater 1998 F150 4.6L?

How do I replace the block heater in my 1998 F150 4.6L?


How do you remove the dash of a 1998 Ford F150 to replace the heater core?

you should be able to get at heater core just by removing glove box.no need to remove all the dash Is there any instructions on how to do this?


How do you replace heater core on a 1998 f150 v8?

There is no short cut or fast way to do this. The dash has to come out to access the heater box and replace the core. So the steps in replacing the heater core are to disconnect the heater hoses, remove the dash, to access the heater core cover on the front of the heater case and replace the core. Reassembly is in the reverse order as disassembly. Fill the cooling system with new coolant, and burp the air form the cooling system. There is no short cut or fast way to do this. The dash has to come out to access the heater box and replace the core. So the steps in replacing the heater core are to disconnect the heater hoses, remove the dash, to access the heater core cover on the front of the heater case and replace the core. Reassembly is in the reverse order as disassembly. Fill the cooling system with new coolant, and burp the air form the cooling system.


How do you change a heater core on a 1998 Ford F150?

There is no short cut or fast way to do this. The dash has to come out to access the heater box and replace the core. So the steps in replacing the heater core are to disconnect the heater hoses, remove the dash, to access the heater core cover on the front of the heater case and replace the core. Reassembly is in the reverse order as disassembly. Fill the cooling system with new coolant, and burp the air form the cooling system.


1998 ford f150 neither hose going to heater core is hot?

heater core hoses not hot


Does a 1988 F150 have a water shutoff to the heater core somewhere in the engine compartment?

No


How do you replace a heater core on a 1984 Ford F150 with ac?

Look up under the passenger's side dash close to the kick panel, and you will see a heater case. there on the front is a removable cover, held on with several 7mm screws. Remove that cover, disconnect the heater hoses under the hood, and replace the core. Reassembly is in reverse order of removal.


How do you unclog a heater core for a 1990 Ford F150?

Try flushing the coolant system out


Replacing heater core in 2002 f150?

Is there any difference in replacing the heater core in the 2002 as opposed to an earlier model such as the 1997 ?...or is it pretty much the same job ?


How to remove the heater core on a 1996 F150?

Look up under the passenger's side dash close to the kick panel, and you will see a heater case. there on the front is a removable cover, held on with several 7mm screws. Remove that cover, disconnect the heater hoses under the hood, and replace the core. Reassembly is in reverse order of removal.


Why is your 2007 ford f150 truck heater blowing only warm air and not getting hot?

Your heater core might be clogged or otherwise inoperable. Videos for unclogging a heater core can be found quite easily on Youtube.


How do you change the heater core in a 87 Ford F-150?

To change the heater core in a 87 ford f150 is easy. Just remove the glove box and then behind it there is 7 bolts. After you remove the 7 bolts then just remove the cover and behind it is the heater core. By far the easiest heater core I ever changed.


Common heater problems 1997 ford F150?

There are several common heater problems for a 1997 f150. A stopped up or leaking heater core, bad thermostat or clogged up blower fan housing all can cause heat problems.


How do you replace a heater core on a 1997 f150and are there any pictures of this procedure?

to replace a heater core in f150, lift hood and remove both coolant hoses near firewall then inside truck, remove ashtray this will enable you to get at a screw that holds glove box in dash remove glovebox then behind glovebox is a black plastic panel remove screw holding this panel remove panel, you will then see the heatewr core remove screws holding heater core remove heater cre istallation of new core is exact opposite to removal of old core when all reassembled, check coolant level, as you may have lost some during replacement of core


Where is the heater core in a 1999 f150 4wd?

Burried behind the dash on the passenger side, good luck.


1999 f150 heater only blows cold air?

some possibilities are. low coolant level, open thermostat, pluged heater core,


How do you change the heater core in a 2000 F150 4.6L?

remove glove box. remove platic cover behind glove box under hood remove both heater hoses at firewall under dash remove retaining screws on heater core remove heater core reinstall is exact opposite of removal


Why does your f150 heater blow cold air?

Low on coolant. Thermostat stuck open. Heater core plugged up. Temp blend door malfunction.


Can you drive your ford F150 to Kansas with your heater core blow en?

I wouldn't recommend it. Odds are that you'll lose coolant liquid through the heater core, which eventually can lead to the car running dry and overheating.


How do you change heater core in a 97 f150 w air auto 4.6l?

the heater core is located behind the dash on the passenger side of the cab. much of the dash has to be removed and shifted to get to the box that houses the heater core. the hoses that supply coolant to the heater core must be remove via the engine bay. it is somewhat of a lengthy process, but can be done with patience and time.


How do you change the heater core in a 2000 F150 5.4L?

trust me that is not a job you want to take on. take it to a mechanic. you have to pull the dash out


Why is the odor of antifreeze coming through the ac and heating system in a 2002 ford F150?

You probably have a leaking heater core.


How to change heater core in a 1994 f150?

Look up under the passenger's side dash close to the kick panel, and you will see a heater case. there on the front is a removable cover, held on with several 7mm screws. Remove that cover, disconnect the heater hoses under the hood, and replace the core. Reassembly is in reverse order of removal. Look up under the passenger's side dash close to the kick panel, and you will see a heater case. there on the front is a removable cover, held on with several 7mm screws. Remove that cover, disconnect the heater hoses under the hood, and replace the core. Reassembly is in reverse order of removal.


After replacing the heater core in a 1999 F150 the air conditioning no longer works what went wrong?

You have done something to the mix door. It should shut off air to the heater core when the AC is on. It is located right near the core and you may have bent it or just disconnected it by mistake.