Have misfire on 1 and 4 cylanders, changed.

Tiny
ALMORGILLO
  • 2003 KIA SEDONA
  • 120,000 MILES

Have misfire on #1 and # 4 cylanders, changed plugs, wires, coil, checked for vacume leak found one in plenum change lower half, have any suggestions thankyou

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Monday, October 22nd, 2012 AT 11:05 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,554 POSTS

Start with a compression test to verify the motor is good.

Check fuel pressure as well.

Check the injectors and wiring as they can contribute to this issue as well.

Roy

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Monday, October 22nd, 2012 AT 11:26 PM

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