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GM provides technical details of the Gen 2 Voltec propulsion system used in the 2016 Volt

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Clutches are OWC1, C1 and B1. 1) and external cooled exhaust gas recirculation (EGR). Conversely, engine cold-start at high altitudes dictates an early park position of the intake camshaft, increasing the effective compression ratio of the engine. Click to enlarge. —Jocsak et al. L Ecotec engine.

Volt 150