Glossary “high voltage cables” Definition:
The secondary cables that carry high voltage from the distributor to the spark plugs.

Glossary “high tension cables” Definition:
A term used for spark plug wires.

Glossary “high tension wire” Definition:
The wire that transmits high voltage from the coil to the distributor.

Glossary “high suction” Definition:
Term used when the low-side pressure of a system is higher than normal due to a malfunction of the system.

Glossary “high swirl combustion (HSC)” Definition:
Ford’s name for a cylinder head and valve design that promotes turbulence in the combustion chamber during the power stroke, contributing to complete and efficient burning of the A/F charge.

Glossary “high swirl port technology” Definition:
Cylinder head design with high-speed air flow to pack more A/F mixture into the combustion chamber.

Glossary “high solids paint” Definition:
The non-liquid contents of paint needed to reduce air pollutions or emissions when painting.

Glossary “high spot” Definition:
Outward curvature of a normally flat or smooth surface.

Glossary “high strength steel (HSS)” Definition:
Sheet metal that is stronger than low-carbon or mild steel because of heat treatment.

Glossary “high side drivers” Definition:
Control of the output device by varying the positive side voltage.

Glossary “high side pressure” Definition:
Term used for discharge pressure.

Glossary “high side service valve” Definition:
Device located on the discharge side of the compressor, permitting the service technician to check the high-side pressures and perform other necessary operations.

Glossary “high pressure side” Definition:
1). Part of an A/C system, from the compressor outlet to the evaporator inlet, that is under high pressure. 2). Any part of a system, such as fuel injection, that is under high pressure.

Glossary “high pressure switch” Definition:
Electrical switch activated by a predetermined high pressure.

Glossary “high pressure vapor line” Definition:
Line or hose running from the compressor outlet to the condenser inlet.

Glossary “high riser” Definition:
1). The raised cylinder heads of the 427 cid Ford engine of the 60’s. 2). Term given to a manifold that places the carburetor above its original design location.

Glossary “high side” Definition:
Term used for discharge side.

Glossary “high pressure relief valve” Definition:
Mechanical device designed so that it releases the extreme high pressures of the system to the atmosphere, used to protect the system from high pressures.

Glossary “high pressure cutoff switch” Definition:
Electrical switch activated by a predetermined high pressure to open a circuit during certain high-pressure periods.

Glossary “high pressure line” Definition:
1). Lines or hoses from the compressor outlet to the metering device inlet of an A/C system. 2). Any line or hose that carries high-pressure liquid or gas, such as a power steering pressure hose.