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Showing results for tags 'Valve Seals'.
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Hello Everyone, What a wonderful forum this is very helpful and informative. Looking for some input on an oil consumption issue I with a 2007 5.9. I bought the truck used with 160,000 miles on it. At first there were no issues at start or running except it used about 1 quart of oil per 500 miles. Lately though on cold start I noticed a flutter for the first 5 - 10 seconds then it runs fine again. The exhaust and input side of the turbo are dry with no evidence of an oil leak. Also, there are no oil leaks from anywhere on the engine so the oil is definitely going out the exhaust either by the rings or from a valve seal leak. Does anyone have experience with bad valve seals leading to high oil consumption? I have read this is a possibility but am afraid it is a bigger problem. I am planning to do an inspection of the valve seals and depending on what I see a compression test to gather further information. Thanks
