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TCP/IP

An acronym for Transmission Control Protocol Internet Protocol; The suite of communications protocols used to connect hosts on the internet.

TCS

An acronym for 1. Traction Control System A system that attempts to control wheel spin during acceleration on slick road surfaces. 2. An acronym for transmission controlled spark.

TD

Thermactor diverter.

TD/TAC

Trap door/thermostic air cleaner.

TDC

An acronym for top dead center.

TDCL

Total diagnostic communication link.

TDCM

Acronym for Theft Deterrent Control Module (GM).

TDDV

Trap door delay valve.

TDR

1. Acronym for Time delay relay 2. Acronym for Transmission Data Recorder (Chrysler).

Te

[1] Tellurium An element with the atomic number of 52 [2] A racing term for Top Eliminator.

Tech 1

A scan tool recommended by GM for computer diagnosis.

Technical Inspection

The examination of vehicles before an event to ensure that they conform to the rules.

Technical Service Bulletins

(TSB) The periodic information provided by the vehicle manufacturers regarding any problems encountered.

Technician

One involved in the design, operation, service or repair of a vehicle.

Tee Pee Exhaust

An exhaust system for the Volkswagen Beetle engine.

Teething Troubles

Having difficulties with a new part or with a new vehicle.

Teflon Pin Bottom

A Teflon piston-pin retainer that fits between the pin and cylinder wall.

TEL

An acronym for tetraethyl lead.

Telescoping Shock Absorber

A shock having certain working parts that move in and out during compression and rebound.

Tell-Tale Light

Short for Dash warning light or Idoit light.