1997 Cadillac Seville Strange A/C Problem with 97 Seville!

1997 CADILLAC SEVILLE
12,700 MILES • V8 • 2WD • AUTOMATIC
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RONSPAIN
  • MEMBER
  • 8 POSTS
The A/C does not blow cold until I rev up to 3,000 RPM or so. Then blows cold...sometimes stops blowing cold...but another rev fixes it up. Any ideas?

Thanks!

Ron
May 6, 2009 at 9:22 AM
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FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
Has anything been done to address this yet, have the pressures been read? You need to know that you have a proper charge amount, a properly installed expansion device(orifice tube), and a compressor capable of pumping. Sometimes the orifice tube is in backwards, sometimes it is clogged. Pressure readings can provide some insight. Look for possibly a slipping compressor, too weak electromagnetic clutch and/or excessive air gap between the drive plate and the pulley.
May 6, 2009 at 2:58 PM
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