2003 Kia Sedona Misfire On 1 4 Cylanders Changed Plugs Wires Coil Checked

2003 KIA SEDONA
120,000 MILES
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ALMORGILLO
  • MEMBER
  • 1 POST
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
Oct 22, 2012 at 11:05 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
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
Oct 22, 2012 at 11:26 PM
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