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Ask A. Penland Your Own Question
A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Ford
Satisfied Customers: 6212
Experience:  ASE Master Certified, ASE Advanced Gasoline Engine Performance
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No heat

Customer Question

no heat
Submitted: 1 year ago.
Category: Ford
Expert:  A. Penland replied 1 year ago.

What year and model Ford are you working on?

Customer: replied 1 year ago.
2000 f350
Customer: replied 1 year ago.
replaced thermosat and flush raditor and new coolant
Expert:  A. Penland replied 1 year ago.

Are both heater hoses hot going to the heater core at the firewall? once the engine heat up?

Customer: replied 1 year ago.
just the one
Customer: replied 1 year ago.
what could be the issue
Expert:  A. Penland replied 1 year ago.

Try flushing the heater core. Since only one hose is hot, the heater core itself is clogged and not allowing hot coolant to flow through the heater core for heat. If it cannot be flushed out, then it will have to be replaced.

Customer: replied 1 year ago.
where is it located and how to flush it
Customer: replied 1 year ago.
is this behing glove box
Customer: replied 1 year ago.
how to flush
Expert:  A. Penland replied 1 year ago.

You will need to take the heater hoses off the heater core from under the hood and force water both directions through the heater core.

It is located behind the glove box but the heater hoses connect to it under the hood.

Customer: replied 1 year ago.
use a hose
Expert:  A. Penland replied 1 year ago.

Yes, use a hoses and a nozzle to create pressure.

Customer: replied 1 year ago.
take hoses off by fire wall and flush them out
Expert:  A. Penland replied 1 year ago.

Yes.

Customer: replied 1 year ago.
spray water in one oultet dhould water come out of the other
Expert:  A. Penland replied 1 year ago.

Yes, water should come out the other outlet. Then do it the other direction.

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