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99 chevy suburban --Service Engine Soon - No compression
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WL2009
New User
Jul 14, 2009, 4:43 AM
Post #1 of 2
(4583 views)
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99 chevy suburban --Service Engine Soon - No compression
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Have a 99 chevy suburban, 5.7 V-8. Was pulling out to pass the other day, accelerated & vehicle downshifted. The service engine soon light started flashing & then the vehicle started sputtering and missing. Took to mechanic, he said the "# 5 cylinder is showing no compression". Advised he checked for more minor causes, nothing & will have to go into the motor. I'm no mechanic, way over my head. Any ideas as to what happened here, what will be the solution & what kind of expense I will be looking at? The vehicle has 120K miles on it, but was running perfectly before this happened & used no oil or anything.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 14, 2009, 5:09 AM
Post #2 of 2
(4580 views)
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Re: 99 chevy suburban --Service Engine Soon - No compression
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The first thing he needs to do is pull the valve cover off and make sure there are no broken valve spring or rocker problems but I'm thinking you have a timing chain problem, assuming there was no overheating or oil loss before this happened.
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