2005 Honda Civic Hybrid Engine noise

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

Sunday, July 6th, 2014 AT 12:07 PM

5 Replies

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

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

KIMIKIM

MEMBER
3 POSTS

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

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

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

KIMIKIM

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3 POSTS

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

JACOBANDNICKOLAS