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Over adjusted drum brakes

Drum brakes are adjusted to compensate for normal wear. If they are over adjusted, the brakes can lock up, or be activated with very little pressure on the brake pedal. The brake shoe adjuster resets

created: Jun 7, 2008 - last edited: Jul 6, 2010 - category: Brakes

Overhead Camshaft

An overhead camshaft, also called an overhead cam or abbreviated OHC, is a camshaft mounted above the cylinder heads rather than below the cylinders. The OHC activates the valves directly, eliminating

created: May 10, 2010 - last edited: Jan 16, 2011 - category: Engine

Pads or rotors are glazed or very smooth

Under normal usage, brake linings can develop a shine on the surface. This happens under normal wear and is used to tell the driver that the pads need replacement.

created: Jun 7, 2008 - last edited: Jul 1, 2010 - category: Brakes

Parking Brake

A parking brake, also called an emergency brake, hand brake, or e-brake, is an alternative method of stopping an automobile. The parking brake can also be used when parking on hills to prevent the ca

created: Mar 5, 2009 - last edited: Mar 5, 2009 - category: Brakes

Parking Brake Switch

The parking brake switch is a device that triggers a signals the engagement of the parking brake. It informs the driver that the parking brake is engaged. It is located near the parking brake pedal or

created: Jun 24, 2010 - last edited: Jun 24, 2010 - category: Brakes

PCV Valve

A PCV valve, or positive crankcase ventilation valve, is a valve that reroutes blow-by back into the intake manifold. The blow-by is then burned in the cylinders.

created: May 10, 2010 - last edited: May 10, 2010 - category: Engine

Pedal Free Play

Pedal free play is the amount of movement a pedal makes before the associated action takes place. For example, the brake pedal may be pushed half an inch before the brake system is activated. The free

created: May 3, 2010 - last edited: May 3, 2010 - category: Other

Pinched or restricted fuel hoses

Pinched or restricted fuel hoses will prevent the proper level of fuel from reaching the engine. This will result in stalling. Fuel particles that remain unfiltered, from filter damage or defect, and

created: Jun 7, 2008 - last edited: Jul 4, 2010 - category: Fuel System

Piston

A piston is the component of the engine that compresses the fuel-air mixture and is driven down upon combustion to turn the crankshaft. The piston is made of metal and contained inside the cylinder.

created: Mar 3, 2009 - last edited: Mar 3, 2009 - category: Engine

Piston Rings

Piston rings are metal rings located on the outside of the piston that provide a seal for the fuel and air mixture in an internal combustion engine. They also prevent oil from entering the combustion

created: Feb 27, 2010 - last edited: Jun 19, 2010 - category: Engine