Top dead center. It is when a piston is at its highest position.
In K9K engine series: If you mean the tdc in order to lock crankshaft to replace timing belt, in front of the engine near the flywheel zone right below the oil pressure valve there is a small bolt (usually with a torx head "star"). Removing that bolt and inserting a special locking tool through that hole ,will lock crankshaft right on the tdc. No he means the TDC Sensor which is on top of the bell housing it is held in place on a banana shaped plate which is bolted to the engine with 2 10mm bolts.
TDC with regards to an engine means Top Dead Center - and that means a piston is at the highest point in the cylinder befores it starts to go back down the cylinder
Tdc sensor is located lower front of gearbox on Renault laguna diesel engine 2001 onward.
top dead center
tdc means top dead center, and it refers to the pistons in the engine. this refers to all cars, not just an elantra
8 to 10 degrees below Top Dead Center yes, true but most folks understand "before" TDC better.... I know what you mean..when piston is below TDC in compresion stroke
stroke
The movement of the piston from BDC to TDC.
Engine 4.3L (262 cid)Base Timing 0~ TDC (Manual Trans).Engine 4.3L (262 cid)Base Timing 0~ TDC (Auto Trans).
TDC is Top Dead Center (referring to a specific piston, usually the #1 piston).
It is 0 degrees at top dead center ( TDC ) With engine warm.
probably needs the TDC Sensor cleaning.