Glossary “fastback” Definition:
Body style having a roof line that extends in a single, simple curve from the windshield to the rear bumper.
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fastener length
Glossary “fastener length” Definition:
Relates to two areas, the overall length and thread length. The overall length is measured from the bottom of the bottom of the bolt head to the end of the threaded portion. Thread length is measured from where the threads begin on the shank to the end of the bolt.
fatigue
Glossary “fatigue” Definition:
Tendency of a material to break under conditions of repeated stressing considerably below its tensile strength.
fast burn
Glossary “fast burn” Definition:
Using high compression and swirl, the rapid combustion of an A/F mixture.
fast flush
Glossary “fast flush” Definition:
Special machine to clean the cooling system by circulating a cleaning solution.
fast idle
Glossary “fast idle” Definition:
Higher speed, 1,100 to 1,500 rpm, at which an engine idles during cold start and warm-up, when first started.
fast idle cam
Glossary “fast idle cam” Definition:
A cam-shaped lever on the carburetor or throttle body that provides fast-idle action when the engine is cold.
fanning
Glossary “fanning” Definition:
Use of pressurized air through a spray gun to facilitate drying, a practice not recommended.
FANSS
Glossary “FANSS” Definition:
Fan Speed Sensor Signal Displays as RPM.
FANSSM
Glossary “FANSSM” Definition:
Variable Speed Fan Hall Sensor Input
FANVARF
Glossary “FANVARF” Definition:
Variable Speed Fan Output Fault Displays Yes/No.
farad (F)
Glossary “farad (F)” Definition:
Basic unit for capacitance. A capacitor has a value of one farad when it has stored one coulomb of charge at one volt. Named for Michael Faraday (1791-1867)
Faraday
Glossary “Faraday” Definition:
Michael Faraday (1791-1867) is credited with the discovery of electromagnetic induction.
FANDC
Glossary “FANDC” Definition:
Variable Speed Fan Duty Cycle
fan clutch
Glossary “fan clutch” Definition:
Device installed between the water-pump pulley and fan of an engine-driven fan that is reacts in response to engine speed and underhood temperature.
fan hub
Glossary “fan hub” Definition:
Mounting surface for the fan.
fan shroud
Glossary “fan shroud” Definition:
Plastic or metal housing inside which the fan rotates; on certain vehicles, allowing all of the air flow to past through the radiator finned tubing and prevents air recirculation.
false air
Glossary “false air” Definition:
Air entering the intake system that is unmetered, or air that is delivered upstream of the O2 sensor during CL operation.
false guide
Glossary “false guide” Definition:
Valve guide used to replace a worn integral-valve guide.
FAM
Glossary “FAM” Definition:
Feedback Actuator Motor