2005 Honda Civic Hybrid Engine noise

Tiny
KIMIKIM
  • MEMBER
  • 2005 HONDA CIVIC HYBRID
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
I have an engine noise on top of engine sounds like backfire/knocking noise I had engine codes p0300, p0301, p0302 when I disconnect coil pack number 2 the noise goes away
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Sunday, July 6th, 2014 AT 12:07 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
The trouble codes you have are all relating to an engine misfire. My concern is that the sound goes away when you remove power to the #2 coil. Have you removed the spark plug to inspect it?
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Sunday, July 6th, 2014 AT 2:13 PM
Tiny
KIMIKIM
  • MEMBER
Yes I remove spark plugs I actually changed them all the ones in cylinder 1 and 2 had carbon deposits on them cylinder 3 and 4 were normal looking I don't know if you know this but theirs 2 spark plugs per cylinder
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Sunday, July 6th, 2014 AT 2:28 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi again:

yes, I'm familiar with the design. Listen, if you clear the trouble codes, do the same ones come back? Also, have you checked compression in the #2 cylinder? I question a burnt valve.
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Sunday, July 6th, 2014 AT 2:39 PM
Tiny
KIMIKIM
  • MEMBER
I have not done compression check, I'm not sure on the procedure for compression check on hybrid, someone told me I need a special machine. Do you know if this is true?
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Sunday, July 6th, 2014 AT 8:50 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
It's still an internal combustion engine. Here are directions.

http://www.2carpros.com/articles/how-to-test-engine-compression
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Monday, July 7th, 2014 AT 7:25 PM

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