Glossary “AM2” Definition:
Air Management 2. Secondary AIR diverter.
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amber
Glossary “amber” Definition:
A type of resin that, when rubbed with a cloth, assumes a strong positive charge.
amber lens
Glossary “amber lens” Definition:
Color of lenses used for turn signals and emergency flashers.
aluminized coating
Glossary “aluminized coating” Definition:
Metal spray process used to coat engine components subject to high temperatures for long periods of time to increase heat dissipation to the ambient atmosphere and inhibit corrosion.
aluminum (Al)
Glossary “aluminum (Al)” Definition:
A versatile engineering and construction material that is light in weight, yet some of its alloys have strengths greater than steel. It has high resistance to corrosion and is an excellent conductor of heat and electricity.
aluminum cylinder block
Glossary “aluminum cylinder block” Definition:
Engine block cast of aluminum or aluminum alloy, usually with cast iron sleeves installed as cylinder bores.
aluminum-killed steel
Glossary “aluminum-killed steel” Definition:
Steel alloy in which aluminum has been added to “kill” it in the molten stage and refine its grain structure. A process of stopping molten steel from bubbling and combining with oxygen after being poured into ingots. Also see silicone-killed steel.
aluminum oxide
Glossary “aluminum oxide” Definition:
Toughest and most durable abrasive for use on metal surfaces, but not quite as sharp as silicon carbide, but it does not brak down as easily.
ALVW
Glossary “ALVW” Definition:
Adjust Loaded Vehicle Weight (curb weight + CVWR) / 2 = ALVW
AM
Glossary “AM” Definition:
Amplitude Modulation, or Air Management
ALTLAMP
Glossary “ALTLAMP” Definition:
Generator Indicator Fault Displayed as On/Off.
ALTMON
Glossary “ALTMON” Definition:
Alternator Monitor
ALT SEN
Glossary “ALT SEN” Definition:
Alternator Sensor Line Displayed as On/Off.
ALT V
Glossary “ALT V” Definition:
Generator Output Voltage Displayed in Volts.
alum
Glossary “alum” Definition:
Term for Aluminum.
altitude compensation system
Glossary “altitude compensation system” Definition:
An altitude barometric switch and solenoid used to provide better driveability at more than 4,000 feet (1,219 meters) above sea level.
alternative refrigerant
Glossary “alternative refrigerant” Definition:
A refrigerant that can be used to replace an existing refrigerant, such as ozone friendly HFC-134a that is used to replace ozone depleting CFC-12
alternator
Glossary “alternator” Definition:
An electricity-generating device that converts mechanical energy to electrical energy in the form of alternating current. Diodes rectify the alternating current into direct current (DC).
ALTFRUN
Glossary “ALTFRUN” Definition:
Alterative Fuel Run Time
altitude
Glossary “altitude” Definition:
The distance of a point above sea level. Effects automotive emission controls, because the higher the altitude, the fewer oxygen molecules per given volume of air, which alters the effective compression, A/F ratios, and the overall performance of the vehicle.