0
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.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
How do you change the battery on a 2001 Ford F150?
How do you remove and replace the battery on a 2001 Ford F150?
How to change the Belt on a Ford 2002 F150 V8?
I need to change out the alternator on my 2001 f150 supercrew. how do I do it?
Will 2001 ford f150 drivers door fit on 2001 expedition?
Yes, the 2001 Ford F150 driver's door will fit on the 2001 Ford Expedition.
What is top speed of 2001 Ford F150?
The top speed of the 2001 Ford F150 top speed can be from 105 mph to 155mph.
How do you reset the service engine soon light on a 2001 ford pickup?
why appear light ( service engine soon), after change oil on a 2001 ford pickup (f150)?
Why won't heater change from defrost to floor on 2001 Ford F-350?
you have a fuse out...
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.
Where is the blend door actuator on your 1997 F150?
How do I locate the heater blend door actuator in a Ford f150 pickup
Will 1997 ford f150 doors fit on 2001 expedition?
No, a 1997 Ford F150 doors will not fit on a 2001 Expedition. You will need to get a door that is made specifically for the Expedition.
1998 ford f150 neither hose going to heater core is hot?
heater core hoses not hot
Where is the cylinder head temperature sensor on a 2001 Ford Mustang?
where is the CHT sensor on a 2000 ford F150 where is the CHT sensor on a 2000 ford F150
Why does the heater in your 2001 Ford F150 work but only blow cold air and how can you fix it?
1) low coolant? 2) bad thermostat? 3) system airbound? 4) heater core plugged? 5) heater control cable broken?
