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For 1990-2009 cars only

EI06052 - HVAC Not Cooling, A/C Not Cool (Perform A/C Performance Test Per SI)

Subject:EI06052 -- HVAC Not Cooling, A/C Not Cool (Perform A/C Performance Test Per SI)

Models:2006-2007 Cadillac Escalade, Escalade ESV, Escalade EXT
2006-2007 Chevrolet Avalanche, Silverado (Classic), Suburban, Tahoe
2006-2007 GMC Sierra (Classic), Yukon, Yukon Denali, Yukon XL



This bulletin is being revised to close the Engineering Information and provide corrective action. Please discard Corporate Bulletin Number 06-01-39-005A (Section 01 -- HVAC).


Condition

Some customers may comment that the vehicle's A/C is not cooling or is not cold enough.

Correction

DO NOT REPLACE THE A/C COMPRESSOR UNLESS INSTRUCTED BY SI.

Based on technician feedback, engineering has determined SI diagnostics will lead the technician to the specific cause and correction of the customer's concern. Refer to "A/C Performance Test".