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Old 01-19-2012, 09:26 PM
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Engine help

Hey guys, I've got a 2000 prelude base, 230000kms, manual 5sd.

2 weeks ago it started to shudder quite powerfully while idling, in neutral. I took it in to my mechanic and he told me that cylinder 4 has 0 compression, and the others are all fine. Has anyone experienced this problem before? Any ideas of what may be the problem? I figure that it may be a stuck valve. Now I am a student and I really don't have a ton of cash to pour into this to fix it which is really unfortunate. If it requires a ton of repairs, I'm likely to take the hit and buy a new low mileage h22a engine.

Can anyone help me out here?
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Old 01-19-2012, 09:59 PM
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Re: Engine help

it may very well be what he said. in my lude i had a prob similar my ideal was set around 500rpm witch would make my whole car rattle i changed it to 1000rpm and it fixed the proud. also if it is a pulsating idle like 500 to 1000 to 500 to 1000 without pressing gas it is very easily your fast idle valve or a vacume line. if your cylinder was 0 compression your motor would run like crap and most likely have a knock in it. loss of power. if you have normal power it is not the 0 compression.
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Old 01-20-2012, 11:16 AM
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Re: Engine help

could be any of a few things, get a leakdown test done to determine where you're losing compression and go from there.
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Old 01-20-2012, 04:36 PM
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Re: Engine help

I second and third the leakdown test idea.. Cause like jkoni426 stated, it could be one of a few things..
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Old 01-27-2012, 10:33 PM
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Re: Engine help

valve springs
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