oldsmobile Workshop Repair Guides

Oldsmobile Workshop Service and Repair Manuals

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Engine, A/T - Shift/Driveability Concerns/MIL ON|Page 2103 > < Engine, A/T - Shift/Driveability Concerns/MIL ON|Page 2101

Omega L4-151 2.5L VIN 5 2-bbl (1982)

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Choke Pull-off: Description and Operation

When a sudden increase in manifold vacuum is sensed by the valve, the orifice within the valve delays vacuum to the carburetor choke vacuum
break. 

The length of the delay is dependent on the magnitude of the vacuum increase--the greater the increase the greater the delay.

Engine, A/T - Shift/Driveability Concerns/MIL ON|Page 2103 > < Engine, A/T - Shift/Driveability Concerns/MIL ON|Page 2101