Chevrolet Cobalt Service & Repair Manual: Emission Controls

Engine Management

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General Motors Co.

FIG. NO. BUICK: EVAP System & Canister: Centu ...

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Chevrolet Cobalt Service & Repair Manual. Engine Valves R&R
Valve stem oil seal alignment and position is critical. An improperly installed valve stem oil seal may lead to excessive oil consumption, and increased vehicle emissions. When replacing multiple valves simultaneously, mark valves in relation to cylinder/port. Keep al ...