bad ignition timing.
There are several things that can cause your 2003 or Expedition to misfire. The most common cause is a plugged catalytic converter.
where is the coolant sensor on a 2003 kia spectra
what are the possible causes of misfire on number one cylinder in a dodge 2003 ram 4.7 liter engine
The Ignition Coil is the one that cause misfire or Spark Plugs
How to replace throttle sensor kia spectra 2003
Where is the knock sensor for a 2003 kia spectra
Coil pack and the spark plug- check compression
anything basically. I have a 2003 Kia Sorrento and it happened to me too. I asked my dad to fix it but i cant remember why it was misfiring...
location of egr valve on 2002 kia spectra
Cylinder number three misfire.Cylinder number three misfire.
If your car isn't idling high and using a lot of gas, you may have an issue with the idle settings. You can also check your spark plugs to make sure you don't have a misfire.
In the tank,
No, there is not.
Yes. The 2003 Kia Spectra has a timing belt. Kia suggests the timing belt be changed every 60k miles.
where is the water pump located in a 2003 Kia
P0302 (M) Cylinder #2 Misfire Misfire detected in cylinder #2
Cylinder #5 misfire
Is the compressor running ?
Google.com Amazon.com E-Bay
Does not have one.
Were the spark plug wires replaced? Even a pinhole in a plug wire can leak enough spark to cause a misfire. Try swapping that wire with another similar length wire from another plug and see where the misfire is then. If the misfire moves to the new cylinder or ceases completely, you'll know the wire was bad.
Wires, plugs, coil packs. Auto Zone will check codes for FREE. Then go from there.