A/C issue on my 2000 - Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 11 Old 09-05-2011, 07:51 AM Thread Starter
Powerstroke.org Rookie
 
Locashlester's Avatar
 
Join Date: Apr 2011
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
A/C issue on my 2000

I'm having a weird problem with my A/C system on my 2000 F250. It will work at around town speeds and driving at highway speeds, but not work if driving a combination of both. I did some testing and found that when the system isn't working the compressor clutch does not have any voltage going to it. I've checked the freon and pressures, all are ok and I replaced the hi pressure switch but that didn't help. Anything that you can throw my way to help figure this out is greatly appreciated.
Lester

2000 F250, 7.3 turbo, cold air intake, Edge Evolution programmer. Experimenting with Hewlett-Packard Indigo Printing Press oil as an alternative fuel
Locashlester is offline  
post #2 of 11 Old 09-05-2011, 10:49 AM
Compression Ignition Addict
 
MKeeney's Avatar
 
Join Date: Mar 2011
Location: Reno NV
Posts: 155
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I would love an answer to this question myself. I just had my E99 in the shop because the AC simply stopped working the other day. They couldn't find anything wrong with it but they were sure the clutch wasn't engaging. Their suggestion was to replace the compressor for no particular reason other than it doesn't seem to be working, and the condenser because there are some bent fins. I pointed out that it was putting out cold air last week, bent fins and all.

I should be honest here, they did say that the compressor was leaking a little bit and it took a pound and a half of refrigerant. They did service it about a month ago and included some dye when they topped the gas off. When they put the blacklight on the compressor it did show a tiny leak, but they freely said there was plenty of coolant in there to put out cold air.

They also told me that after the compressor and condenser I would need to take it to an electrical shop to track down the reason for the clutch not engaging.

Be gentle, it's my first PowerStroke.

E99 SD 7.3L CC DRW 44
PHP Phoenix 6 Position Chip
aFe Stage II Intake
Wicked Wheel
4" Exhaust
Edge Insight CTS
Edge EAS EGT Probe
Edge TurboTimer
BD Exhaust Brake
BD TorqLoc
Pierce 2T Dump Bed
PacBrake Air Bags (Rear)
Viair Onboard Air Compressor
Escort 9500ix Radar Detector (Worth it's weight in gold)
Cobra 29LX CB.

MKeeney is offline  
post #3 of 11 Old 09-05-2011, 11:08 PM
Serving Our Country!
 
JSchuricht's Avatar
 
Join Date: Aug 2007
Location: Manor, TX
Posts: 2,973
Thanks: 0
Thanked 25 Times in 24 Posts
Mentioned: 1 Post(s)
Quoted: 0 Post(s)
Feedback Score: 2 reviews
What I would do is get a scan tool to monitor if the compressor is actually running. Temporarly bypass the hp and lp sensors one at a time to see if one is causing the issue. If the scan tool says the compressor is engauged, check the clutch.

JSchuricht is offline  
post #4 of 11 Old 09-05-2011, 11:26 PM
Compression Ignition Addict
 
MKeeney's Avatar
 
Join Date: Mar 2011
Location: Reno NV
Posts: 155
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I have to admit, the only thing I know less about than A/C is automatic transmissions, but I don't see how you can check if the compressor is running if the clutch isn't engaged?

Be gentle, it's my first PowerStroke.

E99 SD 7.3L CC DRW 44
PHP Phoenix 6 Position Chip
aFe Stage II Intake
Wicked Wheel
4" Exhaust
Edge Insight CTS
Edge EAS EGT Probe
Edge TurboTimer
BD Exhaust Brake
BD TorqLoc
Pierce 2T Dump Bed
PacBrake Air Bags (Rear)
Viair Onboard Air Compressor
Escort 9500ix Radar Detector (Worth it's weight in gold)
Cobra 29LX CB.

MKeeney is offline  
post #5 of 11 Old 09-05-2011, 11:33 PM
JEL
Compression Ignition Addict
 
Join Date: Sep 2010
Posts: 394
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
SpringerPop's Compressor Clutch Air Gap

Check that link, sounds like it may be a simple air gap problem
JEL is offline  
post #6 of 11 Old 09-09-2011, 07:09 PM Thread Starter
Powerstroke.org Rookie
 
Locashlester's Avatar
 
Join Date: Apr 2011
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
In my case I've checked and know that my clutch is not getting voltage when the problem occurs. I replaced the high pressure switch but not the low pressure. I'll look into it to see if that's the problem.
Lester

2000 F250, 7.3 turbo, cold air intake, Edge Evolution programmer. Experimenting with Hewlett-Packard Indigo Printing Press oil as an alternative fuel
Locashlester is offline  
post #7 of 11 Old 09-09-2011, 07:55 PM
Compression Ignition Addict
 
jesilvas's Avatar
 
Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,148
Thanks: 0
Thanked 27 Times in 25 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
Mine would cut in and out. Turned out to be the clutch spaces. Air Gap i guess? The clutches had worn out so much they were too far apart to engage when it tried to. Had it adjusted and still going great.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
jesilvas is offline  
post #8 of 11 Old 09-10-2011, 12:24 PM Thread Starter
Powerstroke.org Rookie
 
Locashlester's Avatar
 
Join Date: Apr 2011
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Just went and checked he air gap.........out by 20 thou! Reset it back to tolerances and time will tell. I let everyone know in a couple of days if it fixed it.
Thanks,
Lester

2000 F250, 7.3 turbo, cold air intake, Edge Evolution programmer. Experimenting with Hewlett-Packard Indigo Printing Press oil as an alternative fuel
Locashlester is offline  
post #9 of 11 Old 09-10-2011, 07:00 PM
Compression Ignition Addict
 
Join Date: Dec 2009
Posts: 1,283
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Try to fix all leaks,then evacuate before recharging...remember,134A is a blend,and different blends leak more of one component than another.

You're probably going out on low pressure due to a blend leak..

Have you put a gauge on it while running?

What is the low pressure while running?
icysmooth is offline  
post #10 of 11 Old 09-11-2011, 09:02 AM
Compression Ignition Addict
 
MKeeney's Avatar
 
Join Date: Mar 2011
Location: Reno NV
Posts: 155
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I think my problem might be in the thermostat. I have discovered the temperature is always set on high. That would explain why the compressor never turns on. Lord only knows how many times I've had the front part of the dash out. What I don't understand though is why was it working fine one minute and drops dead the next.

Be gentle, it's my first PowerStroke.

E99 SD 7.3L CC DRW 44
PHP Phoenix 6 Position Chip
aFe Stage II Intake
Wicked Wheel
4" Exhaust
Edge Insight CTS
Edge EAS EGT Probe
Edge TurboTimer
BD Exhaust Brake
BD TorqLoc
Pierce 2T Dump Bed
PacBrake Air Bags (Rear)
Viair Onboard Air Compressor
Escort 9500ix Radar Detector (Worth it's weight in gold)
Cobra 29LX CB.

MKeeney is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome