Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

Easy blower fix?

Thread Tools
 
Search this Thread
 
Old Nov 25, 2018 | 05:57 PM
  #1  
ScottyC50's Avatar
ScottyC50
Thread Starter
|
Cross-Country
Joined: Aug 2018
Posts: 69
Likes: 1
From: Outside of Cleveland, OH
Easy blower fix?

I have a 1979 f150 Lariat. The blower motor on my truck is the same when the blower switch is on the 3rd and 4th settings. Is this an easy fix....is something disconnected or do I need to look at the voltage to the switch? Any ideas would be appreciated....thanks!
 
Reply
Old Nov 25, 2018 | 07:50 PM
  #2  
meangreen92's Avatar
meangreen92
Logistics Pro
20 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2005
Posts: 4,217
Likes: 154
Sounds like a bad resistor.
 
Reply
Old Nov 25, 2018 | 07:51 PM
  #3  
ScottyC50's Avatar
ScottyC50
Thread Starter
|
Cross-Country
Joined: Aug 2018
Posts: 69
Likes: 1
From: Outside of Cleveland, OH
Thanks...Ill check it out
 
Reply
Old Nov 25, 2018 | 08:41 PM
  #4  
dlburch's Avatar
dlburch
Cargo Master
20 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2005
Posts: 2,309
Likes: 364
From: Kansas
do the first two switch positions seem normal?
when you switch to the third and fourth settings, can you tell if the blower is running at full speed, or normal speed for the third positions?
When you switch to the hi (fourth) position, the blower resistor is bypassed.
 
Reply
Old Nov 26, 2018 | 03:24 PM
  #5  
ScottyC50's Avatar
ScottyC50
Thread Starter
|
Cross-Country
Joined: Aug 2018
Posts: 69
Likes: 1
From: Outside of Cleveland, OH
The first 2 seem normal. The 3rd are 4th are identical speeds.
 
Reply
Old Nov 27, 2018 | 04:36 AM
  #6  
four-sixty-power's Avatar
four-sixty-power
Fleet Mechanic
20 Year Member
Joined: Feb 2005
Posts: 1,782
Likes: 15
From: Lower Mainland B.C.
I seem to recall that if the resistor goes then it defaults to only running at full speed. So in this case I would suspect your switch is faulty.
 
Reply
Old Dec 24, 2018 | 07:14 PM
  #7  
ScottyC50's Avatar
ScottyC50
Thread Starter
|
Cross-Country
Joined: Aug 2018
Posts: 69
Likes: 1
From: Outside of Cleveland, OH
Thanks - an easier fix than i thought!

Thanks to everyone who responded. I did order a new blower switch. It came in, and when I went to install it, I noticed the black wire from the coupling was pulled out a bit. I pushed it back, and voila! I have all 4 speeds on the blower. I guess I'll just keep the switch - you can never have enough spare parts for a 40+ year old truck. Thanks again...
 
Reply
Old Jun 27, 2021 | 09:00 PM
  #8  
John R. Thomas's Avatar
John R. Thomas
More Turbo
10 Year Member
Photogenic
Photoriffic
Joined: Apr 2013
Posts: 661
Likes: 21
From: Waukesha WI
Need current to my heater/a.c. blower

I looked way back for my previous request for help....not finding it. I found the pictures of the short fuse panel....like mine with 5 fuses. The shorty has no current either side.
It had duel tanks with the valve lever on the floor and a toggle switch on the dash for the gauge. No relay for the blower. AND no current at the switch and the resistor.
The switch has high and 2 lower speeds. Off is on the lower lever. With an orange & yellow wire going to the high speed on the switch and 2 of them at the resistor.......all dead,
I wrote another new thread this week. Perhaps that's the jinx of being a Viking Edition. I'm not able to crawl under the dash feeling where the harness go. I'll try again tomorrow.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-3

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Jun 28, 2021 | 07:12 AM
  #9  
mudbogger2's Avatar
mudbogger2
Tuned
Joined: Mar 2004
Posts: 279
Likes: 85
From: Hoschton,Ga.
Originally Posted by John R. Thomas
I looked way back for my previous request for help....not finding it. I found the pictures of the short fuse panel....like mine with 5 fuses. The shorty has no current either side.
It had duel tanks with the valve lever on the floor and a toggle switch on the dash for the gauge. No relay for the blower. AND no current at the switch and the resistor.
The switch has high and 2 lower speeds. Off is on the lower lever. With an orange & yellow wire going to the high speed on the switch and 2 of them at the resistor.......all dead,
I wrote another new thread this week. Perhaps that's the jinx of being a Viking Edition. I'm not able to crawl under the dash feeling where the harness go. I'll try again tomorrow.
That is where your problem is. No power to the fuse means you wont get power anywhere else on the circuits.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
CNC
1999 - 2016 Super Duty
12
Dec 28, 2016 06:08 PM
hotrod351
1987 - 1996 F150 & Larger F-Series Trucks
1
Jul 29, 2016 12:50 PM
80s Trucker
Cooling, Heating, Ventilation & A/C
2
Jul 2, 2010 09:01 AM
blloyd
Explorer, Sport Trac, Mountaineer & Aviator
6
Nov 1, 2009 07:32 PM
91Van
Cooling, Heating, Ventilation & A/C
14
Oct 17, 2003 12:33 PM




All times are GMT -5. The time now is 01:21 AM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE