Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

Air Conditioning Problem

Thread Tools
 
Search this Thread
 
Old May 29, 2007 | 08:00 PM
  #1  
jdwyer69's Avatar
jdwyer69
Thread Starter
|
New User
Joined: Jan 2006
Posts: 2
Likes: 0
Air Conditioning Problem

Hey there, I have a 99 F250SD V10, problem is that the a/c compressor won't engage. I have checked all (i think) the relevent fuses - under hood and in the passenger compartment. I have also checked the low pressure cycle switch and it is closed, which I think indicates there is ample pressure to allow the compressor to run. I even jumpered that plug as the haynes manual suggests; still the compressor will not engage. Are there any other places or components I should check? Thanks for any advice.
 
Reply
Old May 29, 2007 | 08:48 PM
  #2  
PupnDuck's Avatar
PupnDuck
Fleet Mechanic
20 Year Member
Joined: Jul 2005
Posts: 1,467
Likes: 107
From: Staten Island, NY
With the A/C on, is there 12 volts at the connector to the compressor clutch? If there is, then, with the engine off and the compressor clutch connector disconnected, check the resistance of the clutch coil with a meter. It could be an open coil.
 
Reply
Old May 29, 2007 | 08:51 PM
  #3  
msgtg's Avatar
msgtg
Post Fiend
Joined: Feb 2007
Posts: 5,078
Likes: 0
From: Rural WV
Has it worked in the past? Last year? Or is truck 'new' to you?
 
Reply
Old May 30, 2007 | 02:44 PM
  #4  
jdwyer69's Avatar
jdwyer69
Thread Starter
|
New User
Joined: Jan 2006
Posts: 2
Likes: 0
msgtg:

Yes it has worked very well up until just this past Saturday afternoon. Drove it to my parents' house - worked fine, shut it off, wouldn't work on the way home.


PupnDuck:
Where is the compressor clutch connector?
 
Reply
Old May 30, 2007 | 05:22 PM
  #5  
PupnDuck's Avatar
PupnDuck
Fleet Mechanic
20 Year Member
Joined: Jul 2005
Posts: 1,467
Likes: 107
From: Staten Island, NY
On mine it's a 2 wire flat connector that plugs into the body of the compressor right behind the pulley at about the 10 o'clock position as viewed from the front. Depending on the compressor model used, yours may be a little different but it should be the only electrical connector on the front of the compressor.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ggirten
1999 - 2003 7.3L Power Stroke Diesel
5
Oct 12, 2011 05:13 PM
matthew_thompson498
1983 - 2012 Ranger & B-Series
24
Jul 27, 2011 12:50 AM
barnetto
Cooling, Heating, Ventilation & A/C
3
Jun 12, 2007 10:40 PM
barnetto
1987 - 1996 F150 & Larger F-Series Trucks
7
Jun 12, 2007 08:18 PM
1965fordmustang
Cooling, Heating, Ventilation & A/C
4
Feb 14, 2002 03:38 PM




All times are GMT -5. The time now is 07:23 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE