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Active Fuel Management: It Can Pose Some Challenging Diagnostics

Active Fuel Management: It Can Pose Some Challenging Diagnostics

December 20, 2018

Customer complaints of chirping, ticking, squealing, or squeaking sounds accompanied with misfire codes stored may be the result of valve lifter or camshaft failures on vehicles equipped with Active Fuel Management (AFM), sometimes referred to as Displacement on Demand (DOD). Pinpointing the source of the noise can be a challenge for the technician and the […]

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