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01-11-2018, 11:14 PM
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#1 |
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Senior Member
 
Join Date: Jan 2016
Location: Enumclaw WA
Posts: 267
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Smoke from defrost vents
So I turned my heater on today and there was smoke coming out of the defrost vents. I turned the fan off then it wouldn't come back on. After about 30 minutes I tried again and it turned on and insulation/mouse nest was blowing out the vents. Is my motor going bad? should I replace it and vacuum out the heater box?
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01-11-2018, 11:33 PM
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#2 |
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Registered User
Join Date: Jan 2018
Location: lawrenceburg ky
Posts: 7
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Re: Smoke from defrost vents
Mine did that last week but was actually heater core leak that looked like smoke when but was actually coolant.
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01-11-2018, 11:45 PM
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#3 |
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Senior Member
Join Date: Jan 2016
Location: Enumclaw WA
Posts: 267
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Re: Smoke from defrost vents
I'm guessing with the heater core leak the smoke was sweet smelling? Mine spelt like normal smoke.
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01-11-2018, 11:47 PM
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#4 |
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Registered User
Join Date: Jan 2018
Location: lawrenceburg ky
Posts: 7
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Re: Smoke from defrost vents
Yeah it did.
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01-11-2018, 11:56 PM
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#5 |
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Registered User
Join Date: Nov 2007
Location: Turlock California 95380
Posts: 2,075
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Re: Smoke from defrost vents
Don't forget to Check the blower motor resistor
__________________
72 C20 Longbed 05 1500 Z71 |
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01-12-2018, 12:04 AM
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#6 | |
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Senior Member
Join Date: Jan 2016
Location: Enumclaw WA
Posts: 267
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Re: Smoke from defrost vents
Quote:
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01-12-2018, 12:17 AM
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#7 |
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Registered User
Join Date: Nov 2010
Location: calgary alberta
Posts: 7,832
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Re: Smoke from defrost vents
Clean the blower housing outa and check the motor while youre there. Mouse nests cans start a fire due to overheated blower motor.
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01-14-2018, 02:24 PM
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#8 |
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Senior Member
Join Date: Jan 2016
Location: Enumclaw WA
Posts: 267
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Re: Smoke from defrost vents
Well I replaced the blower motor and cleaned out a little bit of mouse nest and leaves. Problem solved.
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01-14-2018, 02:29 PM
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#9 |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Smoke from defrost vents
Thumbs up!
__________________
Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property"  "Be American, Buy American" 
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01-14-2018, 04:31 PM
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#10 |
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Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,120
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Re: Smoke from defrost vents
Mice really seem to enjoy our trucks.
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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