Mercury ERFI 30HP Four Stroke 2008

by Randy P
(Chicahgo, IL)

Power Trim is malfunctioning - It does raise and lower the engine at rest, but will not hold a trim setting when underway. For example in a shallow water drive setting, advancing the throttle causes the motor to go back down. Same is true for any trim settings when underway, at throttle the motor goes down to its lowest range.

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