The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-25-2016, 03:28 AM   #1
Foureye71
Registered User
 
Foureye71's Avatar
 
Join Date: Feb 2016
Location: Lakewood, CO
Posts: 148
Dead heater fan

Hey all the heater fan in my 71 is in op at the moment, and while I don't mind it when its a little chilly out I do miss having the luxury of sliding the switch and getting warm air into the cab. I have already checked the fuse and the slot it goes into and it gets 12v to each side. From there I checked to brown wire with a voltmeter and no power was getting to the wire. Anyone have any ideas on why that is?
__________________
'71 K1500 Short-Wide
Foureye71 is offline   Reply With Quote
Old 11-25-2016, 07:08 AM   #2
Toms67
Registered User
 
Toms67's Avatar
 
Join Date: May 2016
Location: Sackets harbor ny
Posts: 282
Re: Dead heater fan

Check for power at the switch. And also the resistor on the heater box.
Toms67 is offline   Reply With Quote
Old 11-25-2016, 12:45 PM   #3
VetteVet
Msgt USAF Ret

 
VetteVet's Avatar
 
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,718
Re: Dead heater fan

Quote:
Originally Posted by Foureye71 View Post
Hey all the heater fan in my 71 is in op at the moment, and while I don't mind it when its a little chilly out I do miss having the luxury of sliding the switch and getting warm air into the cab. I have already checked the fuse and the slot it goes into and it gets 12v to each side. From there I checked to brown wire with a voltmeter and no power was getting to the wire. Anyone have any ideas on why that is?
The 14 gauge brown wire is the power input to the heater fan switch from the fuse box. If there is no power on it I"d check the back of the fuse panel for a broken connection or a broken wire on the 14 gauge brown wire.


Name:  2 Cab-2-web.jpg
Views: 135
Size:  25.7 KB
__________________
VetteVet

metallic green 67 stepside
74 corvette convertible
1965 Harley sportster
1995 Harley wide glide

Growing old is hell, but it beats the alternative.
VetteVet is offline   Reply With Quote
Old 11-25-2016, 01:30 PM   #4
kwmech
Senior Member
 
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,630
Re: Dead heater fan

Check also the back of the ignition switch. Unplug the plastic connector and take a look at the terminals.
kwmech is offline   Reply With Quote
Old 11-25-2016, 05:38 PM   #5
Foureye71
Registered User
 
Foureye71's Avatar
 
Join Date: Feb 2016
Location: Lakewood, CO
Posts: 148
Re: Dead heater fan

Quote:
Originally Posted by kwmech View Post
Check also the back of the ignition switch. Unplug the plastic connector and take a look at the terminals.
Which wire on the ign. switch would I need to look at?
__________________
'71 K1500 Short-Wide
Foureye71 is offline   Reply With Quote
Old 11-25-2016, 07:34 PM   #6
jessemthompson
Registered User
 
Join Date: Nov 2011
Location: Williamsburg, VA
Posts: 960
Re: Dead heater fan

Quote:
Originally Posted by Foureye71 View Post
Which wire on the ign. switch would I need to look at?
The brown wire on the ignition is for the accessories.
jessemthompson is offline   Reply With Quote
Old 11-25-2016, 10:03 PM   #7
kwmech
Senior Member
 
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,630
Re: Dead heater fan

Quote:
Originally Posted by Foureye71 View Post
Which wire on the ign. switch would I need to look at?
Possibly the melted one
kwmech is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:22 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com