Glossary “deceleration” Definition:
1). A decrease in velocity or speed. 2). To allow the vehicle to coast to idle speed from a high speed.
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deceleration fuel shutoff solenoid
Glossary “deceleration fuel shutoff solenoid” Definition:
Solenoid which shuts off fuel under certain conditions to reduce vehicle emissions and eliminate emgine run-on.
dealership
Glossary “dealership” Definition:
Privately or factory owned sales and service facility representing an automobile manufacturer.
deburr
Glossary “deburr” Definition:
To remove sharp edges from cast or molding parts. To remove casting flash.
DEC
Glossary “DEC” Definition:
Diesel Electronic Control
decarbonize
Glossary “decarbonize” Definition:
To remove carbon deposits from intake manifolds, combustion chambers or the back side of valves. Also known as decarburize.
decel valve
Glossary “decel valve” Definition:
evice that reduces exhaust emissions during vehicle deceleration by keeping rpm up and vacuum down. May also cut off fuel during deceleration.
dead short
Glossary “dead short” Definition:
Unintentional short to ground, having no resistance.
dead spot
Glossary “dead spot” Definition:
Momentary loss of power in an engine while increasing its speed.
de-ice switch
Glossary “de-ice switch” Definition:
Switch used to control compressor operation to prevent evaporator freeze-up.
DE-MOSFET
Glossary “DE-MOSFET” Definition:
Depletion Enhancement – Metal Oxide Semiconductor Field Effect Transistor This transistor can be operated in either a depletion or enhancement mode.
deactivate
Glossary “deactivate” Definition:
Series of steps necessary to turn a feature or function off, such as to disarm a system.
dead axle
Glossary “dead axle” Definition:
A shaft, such as the rear axle on a front-wheel drive vehicle, that connects wheels to either side of a vehicle but does not provide driving power.
dead blow hammer
Glossary “dead blow hammer” Definition:
Hammer that has a metal face filled with lead shot to prevent rebounding. It will not bound back after striking.
dead center
Glossary “dead center” Definition:
The extreme top or bottom of the pistion stroke. The geometric center of a component, surface area, or angle.
DDE
Glossary “DDE” Definition:
Digital Diesel Electronics
DDL
Glossary “DDL” Definition:
Diagnostic Data Link
DDM
Glossary “DDM” Definition:
Drivers Door Module (Chrysler aka: MUX Module)
de-energized
Glossary “de-energized” Definition:
Having the electric current or energy source turned off.
DCTO
Glossary “DCTO” Definition:
Dual Coolant Temperature Override