Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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A/C - END OF NEED FOR INFORMATION

ENGINEERING INFORMATION

Bulletin No.: 08-01-38-005C

Date: June 22, 2009

Subject: EI08309 - Poor A/C Performance, A/C Not Cold Enough, A/C Compressor Noise (Engineering Information Closed)

Models:
2009 Chevrolet Colorado
2009 GMC Canyon
2009 HUMMER H2, H3, H3T
Equipped with V8 Engine RPOs LH8, L9H (Please Refer to GMVIS)

Supercede:
This bulletin is being revised to close the Engineering Information request. Please discard Corporate Bulletin Number 08-01-38-005B (Section 01 - HVAC).

GM Engineering investigated vehicles with your assistance in the field, but did not identify a single-point issue (root cause) for these possible conditions. Please refer to SI and follow the established diagnostics for correction of the appropriate customer concern.





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