Glossary “dual area diaphragm” Definition:
An automatic transmission shift control that receives its vacuum signal from the intake manifold and the EGR port.

Glossary “dual bed catalytic” Definition:
Term used for dual-bed catalytic converter.

Glossary “dual bed catalytic converter” Definition:
Catalytic converter that passes different gases through an upper or front chamber coated with platinum and rhodium and a lower or back chamber coated with platinum and palladium.

Glossary “dual bed converter” Definition:
Term used for dual-bed catalytic converter.

Glossary “dual action sander” Definition:
Sander that moves in two directions at the same time. It produces a much smoother surface finish.