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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.
I have done 3 of them. The hole dash has to come out. That includes the steering column and pass. air bag. If I remember correctly the a/c system has to opened as well It's not a job for the faint of heart. It is what I call an all day sucker. Good Luck
It is not an easy job. Get a manual on your car from the parts store or AUTOBOOKSONLINE.COM.
You need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
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How Do You replace heater core on 2002 Saturn L300?
Replacing the heater core on this vehicle is fairly straightforward and simple. It's surprisingly accessible. First, drain the engine coolant (from the radiator). Then, on the passenger side, remove the panel on the left side of the floorboard. It's velcroed in there. There are no screws to remove, etc. Once that piece is removed, the heater core lines coming in from the firewall are clearly visible going into the heater core. There is one plastic bracket with a single screw holding it in. Remove the screw and the plastic bracket. Next, if you follow the lines from the firewall to the heater core, you'll see two black plastic pieces where the lines connect to the heater core itself. I used a screwdriver to flip the pieces open. Be careful not to break them. Once they're off, the heater core lines simply pull out of the heater core. Be careful to have a bucket of some sort under the lines, because you will loose coolant into the footwell if you don't. After the heater core lines are pulled out, you can simply slide the heater core itself out.
Where would the fan motor resistor for 2001 f150 be located?
the resistors get very hot, so they put them in the heater ducts so they get airflow when the fan is on, look for a male 4 prong plug held to the heater with 2 screws. the wires from your fan switch should go to it.
What type of transmission fluid does a 1999 ford f150 take?
The type of fluid required is written on the dipstick.
You drive a 1996 Ford F150 4X4 it was running fine then you stopped for gas and it only made one click sound dash lights heater and headlights work but would not ingage?
Check the connections to the solenoid and to the starter.
2006 f150 acts like I'm not getting vacuum to brake booster?
check vaccuum hose for blockage . also check egr valve if both are good, replace vaccuum booster
Where is the heater core in a 1999 f150 4wd?
Burried behind the dash on the passenger side, good luck.
How do I replace the Block Heater 1998 F150 4.6L?
How do I replace the block heater in my 1998 F150 4.6L?
1999 f150 heater only blows cold air?
some possibilities are. low coolant level, open thermostat, pluged heater core,
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
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.
How do you replace a heater flap on a 1999 ford F150?
The heater flap, or blend door, is difficult to replace with OEM parts supplied from Ford. There is an aftermarket kit that makes the job and cost significantly easier at heatertreater.net or on the Ebay listing.
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.
Why is your 1999 F150 blowing cold air when the heat is on?
Low coolant? Defective thermostat? Heat control cable not adjusted properly? Heater core plugged or airbound?
