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Home >> Chevrolet >> 1976 >> Chevette Base, Standard Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Manual Temperature Control >> Components & Functions >> Time Delay Relay
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Time Delay Relay

Relay acts to prevent compressor engagement for 10 seconds (Chevette) or 20-25 seconds (Vega) after the ignition switch is turned on or selector levers are placed in "A/C" mode. This allows time for purging the fuel evaporation canister and preventing compressor clutch chatter.

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