A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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Electronic Control Unit. The vehicle computer which controls the functions of the engine based upon input from various sensors. The ECU adjusts different aspects of the engine. PCM, PCU, and ECM ca…
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Measure of the force applied to an object that causes it to rotate.
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UK carmaker, part of the GM group. Known for models such as the Astra, Corsa and Vectra, which are often branded as Opel, Holden etc elsewhere in the world
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The group of components in a motor vehicle that generate power and deliver it to the road surface. These components can include the engine, transmission or transaxle, transfer case (if so equipped), d…
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The part of the vehicle which surrounds and encapsulates the drive train and occupants. Is usually made out of metal, such as steel or aluminum, but can be made of fiberglass or even plastic. Can be r…
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A division of General Motors which produces trucks.
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An electrical component that safeguards an electrical circuit by melting or otherwise interrupting the flow of current if the current exceeds the designed limit.
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Aligning the wheels on a motor vehicle to a particular degree from center to ensure the forward path of a vehicle remains static.
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a French auto maker, part of the PSA group which also includes Citroen.
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About recommend scheduled maintenance, e.g. oil change.
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The process of fixing or refinishing portions of the body on a vehicle. This could include metal work (straightening or replacing) or paint finishing/re-finishing.
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German motor manufacturer, part of General Motors.
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Questions and discussions about preparing a vehicle for winter, either stored or in use. Appropriate tags should be used with this according to the part being discussed (e.g. tyres)
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A type of gasket used between the cylinder head and engine block to seal the combustion chambers and cylinders, oil galley's and coolant galley's.
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A Division of General Motors. Includes models such as Grand National, Riviera, Gran Sport, Regal, Enclave, LaCrosse, and others.
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The point at which air enters the intake tract of a motor vehicle or stationary engine
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Refers to engine intake or exhaust valves.
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A two wheeled motorized vehicle with a cylinder volume less than 50cc
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Anti-Lock Brakes, a saftey system that allows the driver to maintain control of the car during a panic stop. The system prevents the wheels from locking up.
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catalyze pollutant gasses found in exhaust gasses. Is normally located after the exhaust header, but before the muffler. Can be configured as 2-way or a…
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operate accessories located on the engine, such as alternator, air-conditioning pump, power steering pump, etc. Most modern vehicles use serpentine style belts, but older vehicles can u…
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an American automobile manufactured by Ford, which has been in continuous production since march 1964.
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for generic questions related to tools, techniques and methodologies for diagnosing problems. Do not use this tag for case-specific problems, the "troubleshooting" tag is better suited fo…
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Fluid used in the brake system to transfer pedal pressure to the caliper to stop or slow a vehicle. Commonly used types of brake fluid include DOT 3, DOT 4, DOT 5, and DOT 5.1. A higher "DOT" number i…
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The act of increasing speed over time.
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A vehicle drivetrain that can apply power to all four wheels/tires. This capability is "on demand" and is switched on/off by the operator. This tag is differentiated from the AWD tag for this reason. …
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A condition where one or more engine cylinders experiences lack of combustion or mistimed combustion through detonation
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The act of starting a vehicle in which the internal combustion engine that is at or near the same temperature of it's environment.