Question about 2004 Ford F150
This is a 2000 ford f150. I'm not getting any water to the heater core
Sounds like flow control valve or plugged heater core. See if you can test for continuity if the valve is electric or vacuum if it uses vacuum to work. If the valve is electric and you have continuity, then check for power to it when the heat is set.
It may be possible to isolate the heater core and use a water hose to backflush it. One thing that happens on F150 series is the Temperature knob on the dash breaks and fails to turn the heat stem.
The back of the knob has an elaborate set of ridges to position it. The stem is simply a half-moon shaped shaft. Turn the shaft gently with a pair of wrapped tip pliers to see if water flow improves.
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Posted on Jan 14, 2013
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Posted on Jan 02, 2017
SOURCE: Heater core 1990 Ford F-150
I believe this is the easiest heater core ever invented. If it is like the 1986 model. I believe it is. You take out the glove box door. The heater core is right there under a cover in the duct work.
Posted on Oct 13, 2008
You could disconnect the hose from the core and connect it to the return for the time being. Of course, you'll have no heat for when the temperature drops back into the 90's. :^ )
Posted on Jun 30, 2009
SOURCE: heater gets just a little warm
The thermostat is on both v8 and straight 6 engines are where the top hose goes to the engine and the thermostat is held on with 2 bolts (and make sure it goes back in the same way as it comes out).
But to wash out the heater core well there are 2 5/8" hoses going into the firewall and can be either 2 togeather or one either side of the engine but they are 5/8" hoses, and 1/2" on the early engines, nearest to radiator and turn heater switch to hot with engine running then turn it off and remove the hoses and put the hose flush with the heater hose and turn it on to flush out ,,refit hoses refill with COOLANT. start and test run..
Posted on Oct 08, 2009
1. drain coolant
2.remove instrument panel
3. for 5.4 (4v) if equiped,remove junction splash shield
4.for 5.4 (4v) if equiped, disconnect starter relay cable
NOTE: If needed, clean and lubricate coolant hoses with plain water.
Posted on Nov 12, 2009
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