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Author
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Topic: Heater in my F350
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Wildfire532FB
CAFords OG
Member # 1482
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posted
 
 
The Heater in my F350 stopped working, Its only blowing cold air. Anyone know what i should look at?
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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blown95svt
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Member # 8893
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posted
First make sure the coolant is full, then check the heater control valve vacuum line. It's on the pass of the engine on the heater line. The vacuum lime falls off all the time. If that's not off, do your vents switch to all settings or is it stuck on defrost? If so your vacuum pump us bad or tank Is leaking. If that is good try zip tie the heater control
valve in the open position and see if it warms up. Or your blend door is blocked or bad actuator, or plugged heater core. Pm me if ya need anything else.
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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blown95svt
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Member # 8893
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posted
Also, it may sound funny but try turning your ac on
with the temp setting hot. See if it warms up. I have seen a couple control units do this.
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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Wildfire532FB
CAFords OG
Member # 1482
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posted
quote:
Originally posted by blown95svt:
First make sure the coolant is full, then check the heater control valve vacuum line. It's on the pass of the engine on the heater line. The vacuum lime falls off all the time. If that's not off, do your vents switch to all settings or is it stuck on defrost? If so your vacuum pump us bad or tank Is leaking. If that is good try zip tie the heater control
valve in the open position and see if it warms up. Or your blend door is blocked or bad actuator, or plugged heater core. Pm me if ya need anything else.
OK i will check that.
The vents change to all settings but i haven't tried the AC on with hot air. i'll see if that works. What does it mean if it does heat up?
[ November 27, 2010, 01:31 PM: Message edited by: WildFire532FB ]
--------------------
./_ _ _ ___ __\
(]]]_ _ o _ _[[[)
|\_o_ __ __o_/|
|__|..........|__|
68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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Wildfire532FB
CAFords OG
Member # 1482
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posted
Started the truck up and let t warm up and the heater is working again. I didn't touch anything, so I have no idea why it stops working
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./_ _ _ ___ __\
(]]]_ _ o _ _[[[)
|\_o_ __ __o_/|
|__|..........|__|
68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
| :
|
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