Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

A/C problem

Thread Tools
 
Search this Thread
 
Old Aug 6, 2012 | 04:35 PM
  #1  
Powerstroke-7.3's Avatar
Powerstroke-7.3
Thread Starter
|
Senior User
Joined: Dec 2008
Posts: 169
Likes: 0
From: Cincinnati
A/C problem

I have a early 99 f250 4x4 and i have noticed that when the a/c is on my fan does not blow on the lowest setting but it works when i just have the vents on. All the other settings work fine. Anyone out there have this problem?
 
Reply
Old Aug 12, 2012 | 04:00 PM
  #2  
1fixitman's Avatar
1fixitman
Laughing Gas
Joined: Aug 2012
Posts: 915
Likes: 3
From: Palatka, FL
The resistor for the lowest setting is blown. Replace Switch to repair.
 
Reply
Old Aug 12, 2012 | 10:16 PM
  #3  
carltonwebb's Avatar
carltonwebb
Cargo Master
15 Year Member
Photogenic
Joined: Oct 2010
Posts: 2,089
Likes: 16
Negative. Replace the resistor. It is under the hood next to the blower motor and less than $20.
 
Reply
Old Aug 12, 2012 | 10:34 PM
  #4  
1fixitman's Avatar
1fixitman
Laughing Gas
Joined: Aug 2012
Posts: 915
Likes: 3
From: Palatka, FL
Calrtonwebb is absolutely correct. I was very tired and meant to say Resistor instead of Switch. Advance auto has a few exact fit items if you want to look. I do not know how much a stock ford part cost for this. Go to Advance Auto Parts: Car, Engine, Batteries, Brakes, Replacement, Performance & Accessories and add your vehicle. Then type in Blower Motor Resistor to find what I have posted below.
Dwayne
Advance Auto Parts: Search Results for blower motor resistor

I forgot to mention that the resistor is just to the right of the blower motor and directly behind your Air conditioning Dryer as viewed from the passenger side with the hood open against the firewall. Carefully remove electrical connector from blower motor resistor and remove the two bolts holding it in. It is recommended to remove the negative cable from your battery to replace this item. I guess I really need to go to bed. Good evening.
 
Reply
Old Aug 13, 2012 | 09:12 AM
  #5  
Powerstroke-7.3's Avatar
Powerstroke-7.3
Thread Starter
|
Senior User
Joined: Dec 2008
Posts: 169
Likes: 0
From: Cincinnati
Thanks for the help guys. I'll get into it this weekend
 
Reply
Old Aug 13, 2012 | 06:33 PM
  #6  
carltonwebb's Avatar
carltonwebb
Cargo Master
15 Year Member
Photogenic
Joined: Oct 2010
Posts: 2,089
Likes: 16
[quote=1fixitman;12160163]Calrtonwebb is absolutely correct. I was very tired and meant to say Resistor instead of Switch.


It happens to everyone. I kind of figured that but did not want him to order the fan control switch in the cab in the meantime. That is nice description on how to find and replace it. I was tired too which is why I only posted as little as I did.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dfiske
Cooling, Heating, Ventilation & A/C
34
Nov 27, 2013 12:32 AM
Jgbxfd
Escape & Escape Hybrid
3
Jul 7, 2011 07:27 PM
zedex
1987 - 1996 F150 & Larger F-Series Trucks
5
Nov 11, 2009 07:26 PM
jcee
1983 - 2012 Ranger & B-Series
7
Nov 17, 2008 05:19 PM
JoshF250
1968-Present E-Series Van/Cutaway/Chassis
4
Dec 22, 2006 08:06 AM




All times are GMT -5. The time now is 08:06 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE