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2002 Kia Sportage chugging

Tiny
SCARYMARY
  • MEMBER
  • 2002 KIA SPORTAGE
  • 4 CYL
  • 4WD
  • MANUAL
  • 70,000 MILES
Hi
we have replaced the head on this car and the car will run but is now chugging the engine starts and runs but chugs
the car was put on a diagnostic machine and is reading misfire detected on 1 and 3
could you please help with some advice
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Friday, July 31st, 2009 AT 12:04 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
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Friday, July 31st, 2009 AT 4:15 PM
Tiny
GATEKEEPERATNIGHT
  • MEMBER
  • 4 POSTS
We had the same problem with the code saying misfire on 1 and 3 and it was bad fuel injectors they are electronical so they go out need to change them and u will be fine ours runs great after we replaced them
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Sunday, August 16th, 2009 AT 7:53 PM

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