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Car shuts off with air on

  • Thread starter Thread starter 1Slow90coupe
  • Start date Start date Aug 25, 2006
1

1Slow90coupe

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Oct 18, 2005
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#1
  • Aug 25, 2006
  • #1
I returned home last week after my deployment, and have drove my car twice since then. Yesterday I was preparing to turn into my subdivision and the damn thing just shut off. It started right back up, and I drove around some more to see WTF. It only does it when the AC is on, deceleration, braking. Any help? Ideas?
 
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natestang5.0

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#2
  • Aug 25, 2006
  • #2
i had the same prob it should go away in a week or two. It sounds wierd but that is what mine did.
 

jrichker

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  • Aug 25, 2006
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You have an idle or VSS related problem. See "Help me create the Surging Idle Checklist" at http://forums.stangnet.com/showthread.php?t=534062
for help with your idle problems. The first post contains all the updates to the fixes. I continue to update it as more people post fixes or ask questions.
 
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genericstang

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there is also a idle control sensor for the air conditioning. its connected to the top of the air conditioning resevior thing on the passengerside firewell. when you turn on the air at lower RPMS or idle it kicks the engine speed up a little so the car doesnt die with the extra strain being put on the engine.

this could be the problem. i had to replace mine recently when i got my air conditioning fixed and working properly.
 

jrichker

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genericstang said:
there is also a idle control sensor for the air conditioning. its connected to the top of the air conditioning resevior thing on the passengerside firewell. when you turn on the air at lower RPMS or idle it kicks the engine speed up a little so the car doesnt die with the extra strain being put on the engine.

this could be the problem. i had to replace mine recently when i got my air conditioning fixed and working properly.
Click to expand...
That is incorrect. You have identifed the low pressure cutout switch. It's purpose is to shut off the compressor if the refirgerant charge gets too low. This protects the compressor from not having enough circulating oil to properly lubricate it..
 
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genericstang

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oh. i stand corrected. but could this possibly be the culprit or no?
 
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getastang

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#7
  • Aug 25, 2006
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car shuts off

natestang5.0 said:
i had the same prob it should go away in a week or two. It sounds wierd but that is what mine did.
Click to expand...
let me save you some time and money pull your air tube off that goes to your tb and take some carb cleaner and clean that flap and all in there that will fix it it let me know fassback65@yahoo.com
 

HISSIN50

"How long does it take to get help in here?
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I would use throttle body cleaner and not carb cleaner on the TB butterfly.
 

U2SLO450

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#9
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Don't turn the air on !
 
1

1Slow90coupe

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#10
  • Aug 26, 2006
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U2SLO450 said:
Don't turn the air on !
Click to expand...

Funny, Funny,


I did a head gasket swap before being deployed. During the reassembly I cleaned everything very well, and replaced every gasket. I am going to review the surging idle checklist. Any help is always appreciated.
 
1

1Slow90coupe

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#11
  • Aug 26, 2006
  • #11
after reviewing the checklist I believe that I have my idle set incorrectly. I have moved around the mechanical adjustment and never disconnected the IAC in the process. Any tips on the correct way to set it?
 
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