Runs on three cylinders problems
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Three cylinders change 
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Kia Sephia 1993 33000 miles
The engine starts perfectly but, at 2000 rpm, it sets at three cylinders and, if I keep accelerating, it starts working properly. I've already changed the distributor cap and spark plugs but the failure remains.
2 replies
PH
Hi, SUE. I had your same problem with a Kia Sephia and it was due to a broken spark plug wire.
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SU
Certainly, it was the spark plugs wiring that was failing. I changed it and the problem disappeared. Thank you very much for your response.
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