No heat
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Mountain Pass
Joined: Oct 2006
Posts: 216
Likes: 0
No heat
2014' scab, 5.0, 183K
I turned on my heater this morning for the maybe third time this year and all I got was cold air. I turned the selector from floor to defrost and all was cold. AC worked fine two days ago. Any thoughts?
I turned on my heater this morning for the maybe third time this year and all I got was cold air. I turned the selector from floor to defrost and all was cold. AC worked fine two days ago. Any thoughts?
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Mountain Pass
Joined: Oct 2006
Posts: 216
Likes: 0
I took the actuator out so I could see it. I turned the key on switched on the climate control system, turned the temperature **** left and right and the actuator did nothing it didn't even make a noise. I opened the case turned the motor and all of the gears turned so no broken gears. What else could it be. Coolant level is good.
Fleet Mechanic
Joined: Jul 2010
Posts: 1,354
Likes: 31
From: Winnipeg
Maybe someone can post a wiring diagram for you to trace the circuit. Unfortunately I don't have one. Only other thing I can suggest is to check the fuses and relays involved in the heating circuit. Owners manual should list them. You may be able to switch the relay with another of the same part number that may be used in the fuse box to test.
Hotshot
Joined: Jan 2004
Posts: 19,768
Likes: 1,082
From: St Louis
Any thoughts?
2 Which climate control system do you have? Without that basic and required information, no one can provide the correct diagrams and procedures.
5th Wheeling
Joined: Jan 2014
Posts: 47
Likes: 1
This is symptoms and steps I did to identify it was that actuator in my 2012 xlt with manual temp control.
Pull the fuse in passenger foot well, wait 30 seconds and reinstall. Have temp set to heat and warm up car and see if you get heat. If so, turn the temp **** to cooler(an 1/8 of turn is fine). Can you hear actuator keep going full cold when only moved a little bit? If yes, Likely the actuator is toast, fairly common issue. My Local dealer had part in stock, worst part was removal, but sounds like you’ve already got out. Price was less than $40.
Pull the fuse in passenger foot well, wait 30 seconds and reinstall. Have temp set to heat and warm up car and see if you get heat. If so, turn the temp **** to cooler(an 1/8 of turn is fine). Can you hear actuator keep going full cold when only moved a little bit? If yes, Likely the actuator is toast, fairly common issue. My Local dealer had part in stock, worst part was removal, but sounds like you’ve already got out. Price was less than $40.
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Hotshot
Joined: Jan 2004
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From: St Louis
There are no fuses or relays that can cause your symptom without also causing other extremely observable and more obvious symptoms.
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Fleet Owner
Joined: Apr 2008
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From: 0,0,1
I took the actuator out so I could see it. I turned the key on switched on the climate control system, turned the temperature **** left and right and the actuator did nothing it didn't even make a noise. I opened the case turned the motor and all of the gears turned so no broken gears. What else could it be. Coolant level is good.
Is the engine coming up to the correct temperature?
Hotshot
Joined: Jul 2005
Posts: 11,932
Likes: 181
actuator did nothing it didn't even make a noise. I opened the case turned the motor and all of the gears turned so no broken gears. What else could it be
so the actuator LOOKS GOOD buy does not move.. Makes you think no electrical supply ?... I would also verify that the MOTOR works... check voltage TOO the motor at the plug.
so the actuator LOOKS GOOD buy does not move.. Makes you think no electrical supply ?... I would also verify that the MOTOR works... check voltage TOO the motor at the plug.
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