Metro L3-061 1.0L VIN 6 TBI (1998)
Service Port HVAC: Description and Operation
Service Port and Cap
The primary seal for the service ports is the sealing cap. The cap contains a specially designed O-ring or gasket. The O-ring or gasket provides a
leak-free seal. Loss of the refrigerant charge will occur if any of the following conditions occur:
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The cap becomes loose
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The cap is missing
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The wrong cap is used Ensure that the cap has a rubber seal.
