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My 2003 transit van heater is not working.engine gets up to…

Customer Question
My 2003 transit van...

My 2003 transit van heater is not working.engine gets up to heat and fan works on 3 settings but no heat coming from heater

Mechanic's Assistant: Have you checked to make sure the thermostat is working? What about the coolant level?

Coolant level is good. I havent tested thermostat .

Mechanic's Assistant: What is the model of your '03 Ford?

100 T280

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

I would like to fix it myself. I was thinking that the heater control dial may not be opening the flaps on the heater to let hot air circulate.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

How can I test the thermostat?

Submitted: 9 months ago.Category: UK Car
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Answered in 1 day by:
11/19/2017
UK Auto Mechanic: sprinkles08, ASE Certified Technician replied 9 months ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: UK Car
Satisfied Customers: 24,212
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified

Hello and welcome to JustAnswer! I apologize for the extended wait time you experienced, I've only just come online now and would like to assist you with your question.

There are a handful of things that could be preventing heat from working. The problem may be the heater core itself is restricted or there is air in the system due to improper bleeding or a leak, or there may be a blend door issue in the heater box. IF the blend door isn't moving then you won't be able to control temperature.

Was heat lost suddenly or gradually?

Are you able to control temperature at all?

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Customer reply replied 9 months ago
I am unable to control the temperature . It seemed to be giving out heat even on the cold settinglast year but this year it seems to only give cold air. I have turned the temperature control knob from cold to hot and back again quite a few times thinking it migt solve the problem but no.
UK Auto Mechanic: sprinkles08, ASE Certified Technician replied 9 months ago

If you're unable to control temperature at all then odds are you have a bad blend door actuator, but the door could also be broken and not moving when the actuator spins.

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