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Major problem with LS1 help needed please

Old 03-22-2007, 08:30 AM
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Originally Posted by ponykiller z28 View Post
ok this is where i stand...

as stated above, i did a compression test and got only 30psi on the 5th cylinder.... now to figure out exactly what has happened....

There is no engine noise and i have great oil pressure. It simply feels just like i pulled off the plug wire to the 5th cylinder. Nothing more, nothing less.(besides the smoke at idle and some accelerations) I feel like if it was something major in the lower end there would be some kind of noise and the car would run like ***. The motor seems to be very smooth with just a small miss until put on a heavy load in a higher gear w/ low rpm.

i'm praying to find the problem when i pull the valve cover.
Look a few posts up at what I said before. More than likely you blew the compression ring and ring landing = new piston and rings.
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Old 08-07-2017, 03:56 PM
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Re: Major problem with LS1 help needed please

Did u ever figure this problem out ?
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Old 08-08-2017, 11:27 AM
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Re: Major problem with LS1 help needed please

Unfortunately, "ponykiller z28" has not signed into this site for more than 9 years.
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