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When A/C turns on, RPM drop drastically

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Old Apr 2, 2012 | 08:55 AM
  #1  
Mackadoches's Avatar
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From: Valdosta, GA
Car: 90 Camaro IROC-Z
Engine: L98 350
Transmission: 700r4
Axle/Gears: 3.23 posi
When A/C turns on, RPM drop drastically

Before I replaced my altenator and serpentine belt, the a/c worked fine along with the car. After the replacement of the aformentioned parts, when I turn on the a/c, my RPMs drop by about 1000. Not the normal drop for a few hundred then back up to normal, I mean a big drop to the point my car wants to stall. Ideas?
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Old Apr 2, 2012 | 09:36 AM
  #2  
Dakota W.'s Avatar
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From: Aloha, Oregon
Car: 1991 Christine Z28
Engine: RV Cam and Intake 350 SBC
Transmission: 5speed
Axle/Gears: 3.08 ls Posi
Re: When A/C turns on, RPM drop drastically

a/c compressor could be going out.
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Old Apr 2, 2012 | 11:54 AM
  #3  
Mackadoches's Avatar
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From: Valdosta, GA
Car: 90 Camaro IROC-Z
Engine: L98 350
Transmission: 700r4
Axle/Gears: 3.23 posi
Re: When A/C turns on, RPM drop drastically

I guess that is possible....anyone else?
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Old Apr 2, 2012 | 12:42 PM
  #4  
Dakota W.'s Avatar
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Joined: Aug 2011
Posts: 1,178
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From: Aloha, Oregon
Car: 1991 Christine Z28
Engine: RV Cam and Intake 350 SBC
Transmission: 5speed
Axle/Gears: 3.08 ls Posi
Re: When A/C turns on, RPM drop drastically

If it is the a/c compressor let me know, I've got the used one off of my car for 105 including shipping, a new one from oreilly auto parts is over 200.
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Old Apr 2, 2012 | 06:19 PM
  #5  
Mackadoches's Avatar
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From: Valdosta, GA
Car: 90 Camaro IROC-Z
Engine: L98 350
Transmission: 700r4
Axle/Gears: 3.23 posi
Re: When A/C turns on, RPM drop drastically

Ok will do. Thanks
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Old Apr 3, 2012 | 07:46 AM
  #6  
Mackadoches's Avatar
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From: Valdosta, GA
Car: 90 Camaro IROC-Z
Engine: L98 350
Transmission: 700r4
Axle/Gears: 3.23 posi
Re: When A/C turns on, RPM drop drastically

bump
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