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The Heater core is difficult to replace on the F150 since it is buried in the plenum box. Getting to the core involves removing the steering wheel, steering column, complete dash panel, evacuating the AC, draining the radiator, and finally removing the heater box. Once you have the box out(8-12hrs), the core is simple to replace.
You want to be sure that the core is the problem before you undertake this process. If there is a strong smell of antifreeze in the cab or a puddle of coolant on the floor, the diagnosis is easy.
Check that the radiator is full, not the overflow tank, the radiator. On a cold engine you can remove the radiator cap and check the level. It should be full. If there is air in the system it will affect cab heating and engine cooling.
Another good check is to feel the two heater hoses going into the firewall from a cold start. The hoses should warm up at about the same rate and get uncomfortably hot-close to radiator temperature.
If the core appears to be OK, the next concern is with the blend door that diverts air through the heater core. This is a common failure on the F150. We have a video posted on our web site that shows how to diagnose and repair the system. Please follow my user name back to my bio page to find a cut-and-paste link to the web site. You are only a few clicks away from solving the problems.
What else can I help you with?
Where is the blend door actuator on your 1997 F150?
How do I locate the heater blend door actuator in a Ford f150 pickup
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half inch..
How do you replace the heater core on e150 1997?
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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 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.
How do you replace freeze plugs between the motor and transmission on a 1997 Ford Taurus?
how do you replace the freeze plugs between the transmision and motor on a 1997 f150 5.4
Should you replace front coil springs on 1997 Ford F150 when changing the shocks?
No , unless the spring is damaged
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 do you replace the heater core on a 1997 Ford Thunderbird?
To replace the heater core on a 1997 Ford Thunderbird, start by disconnecting the negative battery cable and draining the coolant from the radiator. Remove the dashboard and the center console to access the heater core housing. Disconnect the heater hoses, unbolt the heater core from its housing, and replace it with the new unit. Reassemble everything in reverse order, refill the coolant, and check for leaks.
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 a heater core in a 1998 Ford Expedition?
How do you replace a heater core in a 1998 ford expedition?"
How do you remove the dashboard on a 1997 Ford Thunderbird to replace the heater core?
you might be able to just go through the back of the glovebox to get to the heater core
