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 12-19-2002, 10:36 AM   #1
GMC_Aaron
Registered User
 
Join Date: Jul 2002
Location: Ventura, Ca.
Posts: 87
Heater/AC Fan

How many settings does the fan have, 3? Low, medium & high? I recently bought my truck and it only blows on high, the last click down. The switch has 3 clicks down, but only high seems to work. How can I remedy this?
__________________
Aaron
Ventura, Ca.
1972 GMC Super Custom SB350/TH400
GMC_Aaron is offline   Reply With Quote
Old 12-19-2002, 12:37 PM   #2
jhow66
Registered User
 
jhow66's Avatar
 
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
Sounds like your resistor on heater box under dash is bad or disconnected--3 wire connector--also check heater fuse as high speed on blower is on a inline fuse.
__________________
56 Chevy Bel-Air 2dr. HT (purchased new)
71 Chevy Cheyenne SWB PU (502HO)
65 GMC short bed step--work in progress and my gofer
jhow66 is offline   Reply With Quote
Old 12-19-2002, 04:41 PM   #3
GMC_Aaron
Registered User
 
Join Date: Jul 2002
Location: Ventura, Ca.
Posts: 87
Thanks jhow66!

I'll check and let you know of the outcome.
__________________
Aaron
Ventura, Ca.
1972 GMC Super Custom SB350/TH400
GMC_Aaron is offline   Reply With Quote
Old 12-19-2002, 11:12 PM   #4
Tynee
I miss this truck.
 
Tynee's Avatar
 
Join Date: Dec 2001
Location: Lexington, KY U.S.A.
Posts: 2,863
When my heater fuse blows (twice in the last week, goa short somewhere in the A.C. wiring, but can't leave the switch alone: I'm a dummy) it kills the hi setting on the fan too. I'd go after that resister. Just my Opinion.
__________________
'07 GMC Acadia SLT. Sweet ride.

'08 Crew Cab Z-71 short bed. Really like this truck A LOT.
Tynee 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 06:40 PM.


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