MY car does not have a spark and dont know the cause what can it be?

What make an year vehicle do you have ? A faulty sensor could bring down the 5volt reference circuit in the PCM / ECM , causing no spark ,no crank . Does the check engine light come on when you turn the key on an go off after a few seconds ? Not trying to start the vehicle , just key in the on position . As far as the TDC sensor , need to know make , model an year vehicle . They put them in different places !

no year car, no jeep modle . no engine told. (strike 3?)
is it a ww2 jeep?
get it serviced? ever consider that?

do you have a shop full of tools and know how?
flooding has many causes. and many tests.
ill not list them all , have done so many times.

MISFIRE. (Causes) google this words yet?
flooding, causes.
is fuel pressure too high,? you dont know.
are injector leaking, (you dont have the tool to do leak down and balance tests)
got bad spark , and no scan tool to see P0300 codes? p03xx ?
you fail. 1993 to now 1996 , has newer codes.)
flooding:
1: BAD ENGINE , compression bad, or vacuum bouncing. (runs great so...)
2: bad spark ,scan it yet.? give it a 60k mile tune up this decade?
3: bad fueling, (floods, for many reason)
4: bad fuel>?

have the OBD codes read you may have left a lead off somewhere the code reader should point you in the right direction , dont want to alarm you but if the timing belt breaks whilst engine running it will almost certainly cause some sort of damage so might not be as simple as no spark

Spark is supposed to come from the wires, so I dont know what you are asking.

If you are talking about your spark plugs filling up with gas 1,3 and 6 then you have a serious problem you will soon have misfiring and can cause a fire you must replace your rings and clean out that gas do not try to use gappers in the spark plugs as this will only cause more misfiring.

Timing is right, but the firing order is incorrect then it could not start. Make sure connection at the spark plug is in the firing order. Let get back to the basic: need spark and fuel. After several cranking, take plug # 1 out to see if it wet. If it is wet then you have fuel. If it is dry then you don't have fuel. Start to find out what is the root cause for fuel not coming. Now touch the spark plug to the engine chassis and have a helper to start engine. If there is spark strong then you have spark. If no spark then you know what to do: find the root cause of the problem. If you have spark and fuel then need to recheck timing by Top Dead Center: Piston #1 is up, mark at camshaft and 0 mark at crankshaft all line up together while intake and exhaust valve closed. Good luck.

There are several things that can cause this to happen.
1) crank sensor has failed, it will result in no spark at the plug and no injector pulse.
2) Fuel pump circuit has failed, this could be caused by a blown fuel pump fuse, bad relay, vehicle security system failure or a failed fuel pump.
3) Ignition module failure, causing a no spark at the spark plug only.

Is or has the service engine light been on lately while driving?
If so, the vehicle would be scaned for trouble codes and will give a clue as to what the problem might be.

I dont think you can get a spark knock as i have never heard of that one BUT it could be a spark jumping from lead or plug to earth on engine (BUT THAT WOULD GIVE YOU A MISFIRE) OR it could be a tappet taping as its could be getting low in oil pressure OR the camshaft or rocker is worn a bit causing a slight bigger gap than usual so check it out and let me know Ron

hi you will find that the rocker cover is proberbly leaking into the the plugs housing replace the rocker cover gasket yates210456

i know that if ur car died it most likely has something to do with the alternator or the process in which the fuel gets to the spark