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06-07-2018, 09:07 AM | #1 |
Registered User
Join Date: Jul 2017
Location: herminie, pa
Posts: 313
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Symptoms of a burnt exhuast valve?
Hello everyone,
What are the driving symptoms of a burnt exhuast valve? My truck idles and drives very well, and it still has good mid-range power. But recently it developed a high-load/ high rpm miss. I did a compression test, and cylinder 5 has 75 psi of cranking pressure, cylinder 2 has 95 psi of cranking pressure. The rest of the cylinders all have 120 psi while cranking. I then did a leak down test, and cylinder 5 is clearly leaking out of the exhuast valve. While cylinder 2 appears to be leaking past the rings, I also squirted some oil in number 2 and compression jumped from 95 pounds to 115. I guess my question is, what would these issues "feel like" while driving? Thank you!
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2009 GMC Sierra 1500 2006 Buick Lacrosse 1987 Chevrolet V10 1972 Chevrolet c20 350/350 1967 Chevrolet Biscayne ls3 swapped |
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