1998 mustang stalls when air conditioner is on. Desperatley seeking help! - Ford Mustang Forum
 
LinkBack Thread Tools
post #1 of 13 (permalink) Old 01-26-2011 Thread Starter
Rookie
 
slvrblt's Avatar
 
Joined: Jan 2011
Location: houston
Posts: 2
 
1998 mustang stalls when air conditioner is on. Desperatley seeking help!

I have a 98 3.8l that stalls at various speeds when the a\c is turned on. I switched it from a\c to vent 2 weeks ago and have not had a stall since... Anyone have an idea?

slvrblt is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 01-26-2011
MACH I Member
V6 Member
 
Derfdog15's Avatar
 
Joined: Apr 2010
Location: Fort Pierce
Posts: 2,882
 
Send a message via MSN to Derfdog15 Send a message via Yahoo to Derfdog15
sounds like the alternator


2003 Redfire V6,
Show: Smoked everything, cobra front bumper, gt rear bumper, rear decklid and lower valence blackout with black mustang letters, 5% rear front 15%, black 98 Cobra rims front, 95 Cobra R rear black with chrome lip, black scoops and spoiler and exhaust tips

Go: CAI, True Duals with flowmaster super 44's, Bama Tune, full suspension (lowered, 8.8, 4.10s, UCA, LCA, springs, CC plates)
Derfdog15 is offline  
post #3 of 13 (permalink) Old 01-27-2011 Thread Starter
Rookie
 
slvrblt's Avatar
 
Joined: Jan 2011
Location: houston
Posts: 2
 
just replaced the alternator a month ago.
slvrblt is offline  
 
post #4 of 13 (permalink) Old 01-27-2011
MACH I Member
V6 Member
5.0L Member
 
metalman302's Avatar
 
Joined: Dec 2010
Location: Phoenix
Posts: 2,907
 
try turning the ac clutch by hand to see if it's really hard to turn.
metalman302 is offline  
post #5 of 13 (permalink) Old 01-27-2011
SHELBY GT 350 Member
V6 Member
 
Markstang's Avatar
 
Joined: Jan 2009
Location: Dumont
Posts: 6,168
 
thinkin the compressor might be frozen

2003 3.8L V6 4R70W
Windstar Upper Intake with cool-air intake, MAC LT headers, BBK O/R H-pipe, and flow 40s, SCT tuner, FRPP Alum. D/S, 3.73 gears, Auburn HP limited slip, and Team Z LCAs, Eibach sway bars.
Best 1/4 time: 15.036 @90.92mph, 2.148 60'
Markstang is offline  
post #6 of 13 (permalink) Old 01-27-2011
SHELBY GT 350 Member
V6 Member
 
shinerstang's Avatar
 
Joined: Mar 2006
Location: Greensburg
Posts: 8,348
 
The AC compressor engages on both AC and defrost mode. It sounds like it might be binding up. I would try a can of oil charge in it. It might not be too late......

2002 V6 Turbo 10:[email protected]
2001 V6 Nitrous 12:[email protected]
shinerstang is offline  
post #7 of 13 (permalink) Old 01-28-2011
Apprentice
5.0L Member
 
Marc's Avatar
 
Joined: Apr 2007
Location: Atlantic Seaboard
Posts: 178
 
Quote:
Originally Posted by shinerstang View Post
The AC compressor engages on both AC and defrost mode. It sounds like it might be binding up. I would try a can of oil charge in it. It might not be too late......
Does the AC engage on Mix as well?

1995 3.8 - K&N, Cowley high flow 2.25" catless y-pipe
Shift kit
******************** Retired

1995 GT vert
Auto
K&N, Powerflow 2.25" offroad x-pipe
Marc is offline  
post #8 of 13 (permalink) Old 01-28-2011
MACH I Member
V6 Member
5.0L Member
 
metalman302's Avatar
 
Joined: Dec 2010
Location: Phoenix
Posts: 2,907
 
What is mix and how is that relevant?
metalman302 is offline  
post #9 of 13 (permalink) Old 01-28-2011
SHELBY GT 350 Member
V6 Member
 
Markstang's Avatar
 
Joined: Jan 2009
Location: Dumont
Posts: 6,168
 
i think what is meant is if you put the knob halfway between the red and blue.. in which case i think yes.. the compressor comes on any time you're using the air

2003 3.8L V6 4R70W
Windstar Upper Intake with cool-air intake, MAC LT headers, BBK O/R H-pipe, and flow 40s, SCT tuner, FRPP Alum. D/S, 3.73 gears, Auburn HP limited slip, and Team Z LCAs, Eibach sway bars.
Best 1/4 time: 15.036 @90.92mph, 2.148 60'
Markstang is offline  
SHELBY GT 350 Member
V6 Member
 
shinerstang's Avatar
 
Joined: Mar 2006
Location: Greensburg
Posts: 8,348
 
I think he is talking about heater/defrost mode guys......

Yes, it will engage......

2002 V6 Turbo 10:[email protected]
2001 V6 Nitrous 12:[email protected]
shinerstang is offline  
MACH I Member
V6 Member
5.0L Member
 
metalman302's Avatar
 
Joined: Dec 2010
Location: Phoenix
Posts: 2,907
 
Why would ac come on during defrost?

And no it does not come on anytime you;re using the air. It does not come on at all on vent.
metalman302 is offline  
SHELBY GT 350 Member
V6 Member
 
shinerstang's Avatar
 
Joined: Mar 2006
Location: Greensburg
Posts: 8,348
 
Quote:
Originally Posted by metalman302 View Post
Why would ac come on during defrost?

And no it does not come on anytime you;re using the air. It does not come on at all on vent.
The compressor will cycle in the defrost mode. I believe it is primarily so the compressor clutch will not freeze up during the lack of use in the Wintertime. Anytime it is on AC, defrost, or heater/defrost setting, it will cycle.

To get back to the OP, try the oilcharge........

2002 V6 Turbo 10:[email protected]
2001 V6 Nitrous 12:[email protected]
shinerstang is offline  
Apprentice
5.0L Member
 
Marc's Avatar
 
Joined: Apr 2007
Location: Atlantic Seaboard
Posts: 178
 
Quote:
Originally Posted by metalman302 View Post
What is mix and how is that relevant?
On the knob that controls the airflow: <Max AC- Norm AC- Vent- Off- Floor- Mix- Defrost>

I know the AC engages on Defrost and was wondering if it does on Mix setting.

I think Shinerstang pretty much answered that thanks.........

1995 3.8 - K&N, Cowley high flow 2.25" catless y-pipe
Shift kit
******************** Retired

1995 GT vert
Auto
K&N, Powerflow 2.25" offroad x-pipe
Marc is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang 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, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 Off
Pingbacks are Off
Refbacks are On

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


Search Engine Friendly URLs by vBSEO 3.6.1