A/C issue

brandon444 · May 25th, 2011, 09:21 PM

So I recharged my A/C system And was running it today, I was pulling out of Taco Bell and my car died I was like wtf??? So I recreated it and when I push the clutch in and the car drops to an idle it goes low enough to where it kills it. When I'm already at an idle and turn on the A/C it drops a little bit then comes back up to normal.

What could cause this?

wizwrath · May 30th, 2011, 07:03 AM

It could be a bunch of things, but more info is needed to help you with suggestions:
How was it before you charged the A/C? When it "died out", were you on the throttle or you were idling? Did you have this problem before?
I would check the idle control solonoid, might be dirty or you may need to change it out, but cleaning it helps most of the time. Did you try and do a reset of the idle? Whats the settting on the TPS? How is the charging system?

kmedeiros88 · May 30th, 2011, 10:22 AM

What is your idle set at? Try bumping it up a lil. Mine idles at about 900 rpm.

brandon444 · May 30th, 2011, 04:17 PM

I pushed the clutch in and it dropped down to idle and it went up and down a little then it died, whats the tps setting? and it idles around 700

kmedeiros88 · May 30th, 2011, 04:26 PM

Throttle position sensor should read .95v with key on engine off. And should read less than 5v at WOT. Do you know how to test it. Try upping your throttle scew so you idle at 750 rpm. See if that works. I know if my rpm drops below 500, the car stalls.

May 25th, 2011, 09:21 PM	#1
brandon444 Regular 91 Mustang LX 5.0 Join Date: Jan 2011 Location: Haubstadt, IN Posts: 469 iTrader: 0 reviews	A/C issue So I recharged my A/C system And was running it today, I was pulling out of Taco Bell and my car died I was like wtf??? So I recreated it and when I push the clutch in and the car drops to an idle it goes low enough to where it kills it. When I'm already at an idle and turn on the A/C it drops a little bit then comes back up to normal. What could cause this?

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May 30th, 2011, 07:03 AM	#2
wizwrath Regular Join Date: Jul 2009 Posts: 86 iTrader: 0 reviews	It could be a bunch of things, but more info is needed to help you with suggestions: How was it before you charged the A/C? When it "died out", were you on the throttle or you were idling? Did you have this problem before? I would check the idle control solonoid, might be dirty or you may need to change it out, but cleaning it helps most of the time. Did you try and do a reset of the idle? Whats the settting on the TPS? How is the charging system?

May 30th, 2011, 10:22 AM	#3
kmedeiros88 Regular 89 Mustang LX Hatch Join Date: Feb 2011 Location: Fall River, MA Posts: 324 iTrader: 0 reviews	What is your idle set at? Try bumping it up a lil. Mine idles at about 900 rpm.

May 30th, 2011, 04:17 PM	#4
brandon444 Regular 91 Mustang LX 5.0 Join Date: Jan 2011 Location: Haubstadt, IN Posts: 469 iTrader: 0 reviews	I pushed the clutch in and it dropped down to idle and it went up and down a little then it died, whats the tps setting? and it idles around 700

May 30th, 2011, 04:26 PM	#5
kmedeiros88 Regular 89 Mustang LX Hatch Join Date: Feb 2011 Location: Fall River, MA Posts: 324 iTrader: 0 reviews	Throttle position sensor should read .95v with key on engine off. And should read less than 5v at WOT. Do you know how to test it. Try upping your throttle scew so you idle at 750 rpm. See if that works. I know if my rpm drops below 500, the car stalls.

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