What does tdc mean - 2001 Ford Escort ZX2

Are you talking a computer code or an acronym..
Computer code..???
TDC in automotive acronyms means Top Dead Center... The location the #1 piston must be to do the finale assembly of an engine.

What do you mean nothing?

Hello,
I don't know of a TBC light for Honda but there is a TDC... If that's what you meant to type. Its the "Top Dead Center" sensor

The TDC (top dead center) positioning sensor is another name for your crankshaft position sensor. This sensor measures the position of your crankshaft and helps with the proper firing of your spark plugs when you start your engine. The TDC sensor on the '97 Honda Accord is located on the underside of the engine block. Replacement TDC sensors can be purchased at your Honda dealership. This is not a difficult repair and can be done in about 15 minutes.

Read more : http://www.ehow.com/how_7918547_replace-sensor-1997-honda-accord.html

I hope that helps.... Have a great weekend

It is a possibility. If the computer does not know where the crank shift is at the moment it can advance timing causing the engine to run hotter. Which should also mean your not burning your gas properly

you do nothing
the engine is running so the timing will be correct
there are 2 tdc positions on an engine and it is possible that you got tdc on exhaust stroke which would mean that the marks will not line up
also if you paid to have the job done and it is leaking oil , it is the mechanics job to fix the leak --not yours

The code P1361 and P1362 can relate to a TDC sensor failure, the plug could be dirty or you may need to replace the sensor. Here's a walkthrough:

http://www.civicforums.com/forums/115-engine/323984-diy-tdc-sensor-cmp-sensor-replacement-w-pics.html

P1362 means the PCM isn't getting a signal from the TDC sensor. The TDC sensor is actually the camshaft position sensor.

TDC is also a Crank Position Sensor, Advanced Auto Parts has them for $70, or you can pick it up from your local dealer.

The 2 cams are linked with a chain at the rear of the cylinder head.

The cams need to be set so the slots on the chain sprockets line up with the cam tower caps with 16 links between cam caps.

You cannot see the front crank pulley tdc mark so you need to lock the engine at tdc with a screwdriver jammed into the timing hole on the bell housing after setting engine at tdc or use a DTI
to check to tdc in the #1 spark plug hole.

If the cams have not been disturbed you only need to set the belt cam sprocket to the mark and crank to tdc.....all this means pulling the core support into the service position so the belt tensioner can be locked down and/or doing a complete belt job along with a coolant pump if over 70,000 miles..

If the crank is lined up to the mark, it is at TDC, meaning cylinder number 1 piston is at TDC.

Both cam pulleys should have marks, they just look a little different.
Here are the diagrams to help out.

hi from uk hope this will explain TDC valve positions ? when the crankshaft is at tdc this means that numbers 1 and 4 pistons are both at tdc but only one of the cylinders are on firing mode so if let us say in relation to 4cyl engine the fire order is 1 3 4 2 the c/shaft is at tdc ? but for which cyl ? 1 or 4 ? to check look if the camshaft mark is at its mark or check rotor arm ?if at 1 or 4 ? if it isat no1 cyl then both of the valves for that cyl are fully closed whilst no4 cyl valves are at the point of exhaust valve just closed and inlet just about to open this is correct for tdc number 1 cyl firing stroke ?ok so far ? now then if c/shaftmark is atTDC it may be number 4 cyl ready to fire? that is because the camshaft rotates at half speed to the crankshaft soyou need to rotate crank 360 deg to bring cyls 1 + 4 to tdc again then it will be cyl 1 at tdc on firing stroke along with rotor arm at No 1 plug lead and both valves for No 1 cyl will be closed (the cam lobes will be facing up whereas No 4 cyl valves will be pointing down ) hope this is clear for you to understand? if you look at any 4 cyl engine the sequense is the same for No 1 TDC but firing orders may change ie fords 1 2 4 3 is fire order they use as apposed to 1 3 4 2 ? OK? CURIOUSE why you asked? but best wishes and merry xmas from uk

Bring the crank to TDC while WATCHING CAREFULLY the camshaft, making SURE that the pistons are moving in the correct sequence as the valve train. Once you have the #1 piston on TDC, Set up your valve train with what looks to be the most logical position. Then and only then should you consider the factory spec for setting the lead/lag time of the valve train, in degrees. Hope this helps....accordianman