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the car could need a tune up the spark plug are located in the top of the motor under all of the plastic If it's just idling rough, but runs fairly smooth, make sure all the vacuum lines are connected and in good shape. A leaking vacuum line is notorious for this kind of problem. good luck
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∙ 17y ago
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Changed timing belt on 2003 pt crusier now seems to be idling rough?
Belt is probably not timed correctly.
Why does your 2003 kia spectra seems to be starving for fuel going into second gear?
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.
What do I do when my check engine ligt is on. On a 2003 Kia Spectra?
Bring to auto parts or garage and have vehicle scanned
2003 Kia Spectra where is the coolant sensor located?
where is the coolant sensor on a 2003 kia spectra
How do you replace a 2003 Kia Spectra throttle position sensor?
How to replace throttle sensor kia spectra 2003
How long does it take to replace knock sensor on 2003 Kia spectra?
Where is the knock sensor for a 2003 kia spectra
What fuse in a 2003 KIA spectra turns off the door ajar light?
The Door ajar light is not run by a specific fuse. If your 2003 Kia Spectra has a door light keep coming on, you will want to check the connections to make sure that all of the doors are completely closed.
Where is the EGR valve in a 2003 Kia Spectra?
location of egr valve on 2002 kia spectra
Kia spectra tail lights collect water?
My 2003 Kia Spectra constantly gets water in the tail light. I found cracks and must seal them with silicone. Check for cracks and make sure the rubber gasket that wraps it is intact.
Is a proportional valve on a 2003 Kia Spectra a common problem?
Yes I'm doing one now. Check out other Kia forums regarding this issue,
What can cause 2003 Kia Spectra to misfire when taking off and lose power when driving and cause check engine light to come on?
bad ignition timing.
Your 2003 kia spectra runs rough after timing belt change?
If the engine runs rough after a timing belt change, the belt may not have been tightened properly. It may also mean that the wrong timing belt was installed. Either way, it needs to be taken back to the mechanic.
