Glossary “Society of Independent Gasoline Marketers of America (SIGMA)” Definition:
A trade association of wholesale and retail private-brand gasoline marketers.
s
SO2
Glossary “SO2” Definition:
Sulphur dioxide
social skills
Glossary “social skills” Definition:
Ability to get along with co-workers and customers.
sniffer
Glossary “sniffer” Definition:
An exhaust-gas analyzer used in making a smog check.
snorkel tube
Glossary “snorkel tube” Definition:
A long, narrow tube attached to the air cleaner, used to direct air into the air filter.
snow-and-mud tire
Glossary “snow-and-mud tire” Definition:
A tire, identified with an “MS” suffix, having treads designed to provide traction when driving in mud or snow; available in various ply and belt designs.
Snap-On
Glossary “Snap-On” Definition:
Tool manufacturer
snap ring
Glossary “snap ring” Definition:
Circular retaining clip used inside or outside a shaft or part to secure a shaft, such as a floating wrist pin.
snap ring pliers
Glossary “snap ring pliers” Definition:
Pliers that have tiny tips for fitting into clips or snap rings. Both external and internal types are available.
snapshot
Glossary “snapshot” Definition:
A feature of OBD-II that shows, on various scanners, the conditions that the vehicle was operating under when a particular trouble code was set.
Snell Foundation
Glossary “Snell Foundation” Definition:
An organization that sets safety standards for racing helmets that are adhered to by most race sanctioning bodies.
SNAP
Glossary “SNAP” Definition:
Significant New Alternatives Policy.
snap fit parts
Glossary “snap fit parts” Definition:
Parts that use clips or interference fit to hold them together.
SMR
Glossary “SMR” Definition:
Starter Motor Request. Input signal provided to the PCM when the ignition switch is in the START position.
Sn
Glossary “Sn” Definition:
Tin
S/N
Glossary “S/N” Definition:
Serial Number
smoke in exhaust
Glossary “smoke in exhaust” Definition:
A visible blue or black substance often present in the vehicles exhaust.
smoker
Glossary “smoker” Definition:
A vehicle that has an engine that smokes excessively.
smoking rules
Glossary “smoking rules” Definition:
Rules concerning smoking, such as, NO SMOKING or SMOKING ONLY IN DESIGNATED SMOKING AREAS. Fumes or vapors in the shop may be ignited if these rules are not followed. OSHA regulation.
smoothed
Glossary “smoothed” Definition:
Body panel with trim removed and the holes filled.