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Jeremy
Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 3212
Experience:  ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician
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A 2011 Mitsubishi Canter. The heater only blows cold air

Customer Question

Customer: ***** *****, a 2011 Mitsubishi Canter. The heater only blows cold air
JA: Thanks. Can you give me any more details about your issue?
Customer: Such as?
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Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Jeremy replied 1 year ago.

My name is ***** ***** I will assist you.

Are you still needing assistance? If so, what engine temps are you showing when you are still blowing cold air? Are the heater hoses warm to the touch? If they are warm, the nthe thermostat is good. You want the heat on both side of the heater core from both heater hoses. If they are both cool, then the thermostat is sticking and not allowing the heat through. If one side is cool, there is a blockage in teh heater core the needs to be flushed out.

Now if noth are warm to the touch, then next is to see if the damper is changing. When you go through your settings, see if they are changing by the sound and the feel of the air. More them likely in this case if the heater hoses are both warm, the damper is jammed or not working and the little motor needs to be replaced in the air box.

This truck has no valves on it that shut the hot coolant off from the heater core. Some older ones do in the heater control, but this year doesn't have that.

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Jeremy

Expert:  Jeremy replied 1 year ago.

I see you viewed this and this is still showing as a open question due to no positive (3 stars or more) rating.

Did you still need assistance with this?

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