2001 ford focus will not start. No spark, the fuel pump runs, replaced the fuel filter, coil pack and the ignition relay in the steering column, still no spark

Check relay.

I would start at the ignition switch located about halfway down the column. Make sure that is functioning first.

the trick ? would be is what system is causing it like fuel,electrical,or ignition.the ignition coil pack can cause an internal short in the windings causing ignition shutdown.ill start by checking for spark after she shuts down that would narrow it down to the fuel pump and or possible relay failure they also carry a coil just like the ignition coil pack.Fan and oil filter would not solve this matter.in addition make a fuel pump check also they normally come on for about two seconds when key is switched to the on position.

Check TPS sensor[RPM]and IAC sensor.

You will need to figure out if you have spark to the plugs, and if not- if you have voltage to the coil to proceed.

If you open your fuel cap and have someone turn the ignition on you should hear a buzzing noise in the gas tank for two seconds. That's your fuel pump. Also go to the pressure regulator under the hood, access the pressure tester valve, press on the valve and have someone crank the engine for one second. You should get gas coming out.

The pin on the back side of the key may be sheared or the "push" lever may not be moving. Lower your steering column to check.

You will want to find out if you are not getting spark or not getting fuel.
If no fuel, then bad fuel pump, plugged fuel filter, or bad fuel pressure regulator, or bad fuel pump relay.

If no spark, then bad crank sensor, or ignition module, or coil packs.

It could be bad plugs, plug wires, a bad ground will do this as well. Check to see if it has the three main things.

Spark
Air
Fuel

Anther common problem is the crank shaft speed sensor. It will cause it to not spark and not start.

Joe

yes it could be the ignition switch.