2002 Kia Sedona poor acceleration, misfiring, ignition coil

SCOOTERFUN

MEMBER
2002 KIA SEDONA
6 CYL
4WD
AUTOMATIC
62,000 MILES

My engine was replaced this year with 2004 egine with low mileage. I have problems with the ignition coil boots bursting (expensive, 2 burst already) and spark plug coming out. It has problem with acceleration too especially when you stop at the red light or unable to get out of the snow but once it "pick up" it runs fine. Once in a while a feel hesitations, mostly when im running at high speed, suddenly it feels dragging but it still running at the same speed but I have to step on the clutch more to stay on the same speed. I have the cat. Converter changed d/t being plugged. What would be the problem. I dont know much about cars.

4 Replies

JACOBANDNICKOLAS

MECHANIC
109,709 POSTS

Is a spark plug bursting out of the engine?

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Thursday, March 5th, 2009 AT 4:42 PM

LEONEHAL

MEMBER
3 POSTS

Hi, I have same problem.
I have KiaMentor-Sedan-1998.
I have problem in car since long time & spend lot of miney to fix it but no one can fix it. Everyone says different solution so please help me.

Problem is.
Vehicale is Surging after runnning 4-5 KM (Ok in cold but surging after hot).
If I stop at traffic signal car start surging with lots of vibration & stop after 15-30 sec.
If I restart car it runs fine without surging for some time.
My mechanic change fuel filter, air filter, adjust throttle vale & sensor but still having same problem.

Have show my car to so many mechanic & they check on computer. No one can find proper solution.

Please help me what should I do.

Looking forward for your reply.
Leo