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Miss on #4 cyl

(1999 Ford Explorer)
in Gladstone, OR on January 28, 2015
I have changed the wires,plugs,coil pack,intake gasket, and injectors,
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on January 28, 2015
Possible burned valve, failed head gasket, lifter failed. We had a miss in #5 cylinder on a 99 Tahoe, turns out the head gasket failed. Had Spark, Fuel Ect.
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on February 01, 2015
i had the exact same problem. a misfire on #4 and tried everything to fix it, get a compression test quick. i had a blown head gasket and ignored it, next thing i know BOOM #4 piston chipped off, $1,300 for a new engine.
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