Hello, I have a 2001 Civic ex w/ a 1

  • 2001 HONDA CIVIC
  • 180 MILES

I have a 2001 civic ex w/ a 1.7 SOHC vtech it started about 2 months ago and keeps misfiring only on cylinder 4.
did a full tune up and coils, replaced all fuel injectors(refurbished), timing belt component was replaced 1 year ago. Checked for oil in radiator and oil for coolant.(None). Little hesitation and stumble when idle, run and drive fine when car running on the road. Its always the #4 cyl. That I have a problem.

when engine running, ill pull out coil on cyl#4 engine runs same but on others coils it stumble.
notice the #4 plug is full of carbon maybe will help on your advice. Car was always maitained and all records are kept. Should I consider a pro mechanic or its time to replace?

thank you in advance any help will be apriciated!

Saturday, October 27th, 2012 AT 9:45 AM

1 Reply

  • 41,985 POSTS

Is there any trouble codes?
Check the EGR valve for proper operations. Have the engine compression tested.
Check and adjust valve clearance if necessary.

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Saturday, October 27th, 2012 AT 6:56 PM

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