Question about 2003 Ford Focus

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I have a 2003 ford focus with a 2 liter Ztec engine. Lately the car runs rough and vibrates when cold. It will keep running rough after it warms up until I shut of the engine and restart it. Then it runs fine.

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  • Anonymous Mar 30, 2014

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Utomatic choke on

The 2003 Focus doesn't use a carburetor so there is no choke. What are the symptoms that makes you believe the choke is stuck on? Is there black smoke from the tailpipe when the engine is warmed up? The engine runs rough all the time when warm? I think we will need more information to help with your problem.

Jun 05, 2014 | 2003 Ford Focus

2 Answers

Ford focus 2004 vibrates when cold and right turns , once the car worms up the vibration calms doun


Is this engine vibration? if so then I would check the air mass sensor, they start to do this when the car is cold and ofetn are fine once the car is warm. You can remove the air mass sensor and clean it up with carb cleaner, this normally fix's them but not always, certainly worth a try before buying anything.

They are easy to remove and refit, let me know if you need any help.
Is the cars revs / rpms rough when cold?

If so then most likey it will be the air mass sensor/air flow sensor.


Feb 13, 2010 | Ford Focus Cars & Trucks

2 Answers

Firing order for a 2003 ford focus 2.0l

Check and verefy this firing order...

2003 Ford Focus 2.0 liter DOHC L4 VIN "5" and VIN "3"

2003 Ford Focus 2.0 liter SOHC L4 VIN "P"

Hope thats help.

Jan 27, 2010 | 2003 Ford Focus

1 Answer

Rough idle when cold

This could possibly be a faulty engine coolant temperature sensor. these sensors are prone to failing.

Nov 09, 2009 | 2003 Ford Focus

1 Answer

Runs rough once it warms up

With having that many miles and the light being on with a code of O2 sensor, I'd say start there. Make sure which O2 sensor it is first, pre or post convertor. It's getting close to another tune up, but check your plugs first.

Aug 20, 2008 | 2001 Ford Focus

2 Answers

Crankcase capacity for 2003 ford focus 2.0 liter split port engine


To my knowledge, a 2003 Ford Focus 2.0 SPi engine would need 4 quarts of engine oil (roughly 3.78 liters). Incidentally, the Ford/Cosworth Zeta/Zetec engine would be needing 4.25 quarts (~4 liters).

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Jul 02, 2008 | 2003 Ford Focus

1 Answer

2003 Focus ZTW is running with timing belt or timing chain?

Not familiar with the model. Depends on whether it is ztec engine or Volvo as in the ST. If you let me know more detail will try and help.

Jun 10, 2008 | 2003 Ford Focus

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