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Archive Tag: fuel

Fuel Facts: Troubleshooting Rough Idle, Surging, Stalling, Hard Starts and Noises

Fuel Facts: Troubleshooting Rough Idle, Surging, Stalling, Hard Starts and Noises

April 30, 2020

Determining if the performance symptom is due to the vapor pressure of the fuel, carbon buildup, or sticking valves due to gum and varnish can be a challenge.

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Active Fuel Management

Active Fuel Management

December 20, 2018

It Can Pose Some Challenging Diagnostics 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 […]

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Servicing Fuel Filters

Servicing Fuel Filters

March 20, 2018

Neglecting a Filter Replacement Can Be Costly While much emphasis is placed on servicing filters during routine vehicle maintenance, little attention is given to the fuel filter until an engine performance issue occurs. Neglecting the fuel filter can result in damage to some expensive components such as an electric fuel pump or some costly fuel […]

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