Chevrolet Suburban 2500 Problem Report
Chevrolet Suburban 2500 Rattling Noise From AC Belt Tensioner
A rattling noise may develop from the AC belt tensioner. This can be caused by an internal fault with the AC compressor, AC performance may also be diminished when this occurs. Our technicians tell us that replacing the AC compressor will commonly correct this concern.
It sounds like the serpentine belt is hitting resistance for a few seconds at startup, then quits. When the a\c kicks on, it makes a fluttering (almost humming) noise. - Visitor
Squalling while engine is running. Sometimes quieter when engine has been running long periods of time. Replaced both tensioners, no joy. Narrowed down to AC Compressor pulley as increased tension makes squall very quiet, reduced tension makes lots of noise. No pulley/clutch assemblies sold independent of entire AC Compressor. AWESOME! - Visitor
Checked coolant level in AC system and found it to be normal. Local repair shop listened to problem and made correct diagnosis. Replaced AC Compressor - Visitor
Burning smell and squealing noise. Took to dealer and they diagnosed as A/C Compressor failure. Quote $600 just for new compressor. Opted to just disable by cutting belt. - Visitor
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail...
The air conditioning compressor may develop an abnormal noise and require replacement. Our tech...
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