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

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Main Climate Control

A/C Evaporator Core:






The A/C evaporator core is a plate/fin type with a unique refrigerant flow path.

^ A mixture of refrigerant and oil enters the top of the A/C evaporator core through the A/C evaporator core inlet tube and is routed so it flows through the partitioned first four plate/fin sections.
^ The next four plate/fin sections are partitioned to force the refrigerant to flow toward the top of the A/C evaporator core.
^ Refrigerant repeats the cycle for two more plate/fin sections and then moves out of the A/C evaporator core through the A/C evaporator core outlet tube.
^ This W-pass flow pattern accelerates the flow of the refrigerant and the oil through the A/C evaporator core.