Glossary “sunload” Definition:
Heat intensity and/or light intensity produced by the sun.
s
sunload sensor
Glossary “sunload sensor” Definition:
Sensor placed on the dashboard to determine the amount of sun coming into the vehicle; a device that senses heat and/or light intensity.
sulfuric acid (H2SO4)
Glossary “sulfuric acid (H2SO4)” Definition:
An electrolyte (35% acid, 65% water) used in automotive batteries.
sump
Glossary “sump” Definition:
1). The bottom part of some compressors that contains oil for lubrication of the moving parts of the air conditioning compressor. 2). Reservoir for oil at the bottom of an engine. 3). The oil pan, or reservoir, that contains a supply of fluid for the transmissions hydraulic system
sulfation
Glossary “sulfation” Definition:
The lead sulfate that builds up on a battery as a result of battery action that produces electric current.
sulfur oxides
Glossary “sulfur oxides” Definition:
Small amounts of acids that forms as a result of a reaction between the hot exhaust gas and the catalytic converter catalyst.
suicide front axle
Glossary “suicide front axle” Definition:
A special spring and front axle design for early Fords.
suicide front end
Glossary “suicide front end” Definition:
A term used for suicide front axle.
SULEV
Glossary “SULEV” Definition:
Super Ultra Low Emission Vehicle
sulfated battery
Glossary “sulfated battery” Definition:
Battery condition where sulfate has built up on the plates to the extent that it can no longer be charged.
suction service valve
Glossary “suction service valve” Definition:
Term used for low-side service valve.
suction side
Glossary “suction side” Definition:
That portion of a system that is under low pressure.
suction throttling valve
Glossary “suction throttling valve” Definition:
Back-pressure regulated device that prevents freeze-up of the evaporator core.
suicide doors
Glossary “suicide doors” Definition:
Vehicle doors that are hinged at the rear and open from the front.
suction pressure
Glossary “suction pressure” Definition:
Compressor inlet pressure.
suction cup tool
Glossary “suction cup tool” Definition:
A large synthetic rubber cup for sticking onto parts. They are often used to hold window glass when holding or moving the glass, or also to pop-out large surface area dents in panels.
suction line
Glossary “suction line” Definition:
1). The line connecting the evaporator outlet to the compressor inlet. 2). A low-pressure line in a system usually used as a return line.
suction line regulator
Glossary “suction line regulator” Definition:
Device used to regulate the pressure in the suction line.
suction manifold
Glossary “suction manifold” Definition:
The point where vapor enters a compressor.
suction
Glossary “suction” Definition:
A negative pressure.