02 supercrew heater problem
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02 supercrew heater problem
Marginal heat 5.4 f150 Supercrew. I have replaced the thermostat and flushed the heater core both ways till it ran clear (not much rust came out. I can hear the change in air flow so I know the blend door is moving.the hose coming from the front of the intake is very hot. the hose from the rear of the intake that comes from that small tube is not too hot. Which way does the coolant flow through the heater core?
Hotshot
Joined: Jan 2004
Posts: 19,768
Likes: 1,082
From: St Louis
can hear the change in air flow so I know the blend door is moving.
Which way does the coolant flow through the heater core?
You still have inadequate flow through the heater core due either to a restriction, air bubble, or a weak pump.
Senior User
Joined: Sep 2006
Posts: 158
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From: Texas Gulf Coast
How can I tell if the temperature blend door is working on my 2002 F350?
Senior User
Joined: Sep 2006
Posts: 158
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From: Texas Gulf Coast
I am going to start searching, but if anyone knows of a good step by step guide to replacing a heater core, please reply or send me a PM.
Fleet Owner
Joined: Aug 2010
Posts: 21,255
Likes: 1,657
From: Reynoldsburg, Ohio
My coolant overflow tank was dry and all my windows are fogging up when I turn the heater control **** into the red zone - so I'm pretty sure I need a heater core.
I am going to start searching, but if anyone knows of a good step by step guide to replacing a heater core, please reply or send me a PM.
I am going to start searching, but if anyone knows of a good step by step guide to replacing a heater core, please reply or send me a PM.
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