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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Service Port HVAC: Locations

On all models except the Chevrolet Nova the high pressure charging valve is located either on the high pressure vapor line or the muffler, and the low pressure charging valve is on the accumulator. On Chevrolet Nova the high pressure charging valve is on the liquid line ahead of the strut tower, and the low pressure charging valve is on the suction line ahead of the strut tower.