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International Automotive Technicians Network
Re: Loss of compression when driving and ok later
Posted to Technical Discussion Forum on 5/21/2024

Scope the cmp and ckp at idle, at 2500, and while manually activating/releasing the CMP Actuator.

Pay particular attention to how and if the CMP Actuator moves when manually activating it at idle on a hot (fully warmed up) engine.

The cmp/ckp information o... Login to read more.