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2003 Yukon Issues 5.3L
I really need help with this.. I recently did a tuneup on my car.. which consists of: oil change (10-30 pennzoil) oil was a bit sludgy from oil not changed from previous owner.. K&N air filter cleaned TB new fuel filter new spark plug iridiums new spark plug wires and i did all this change...- charlie1983
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- Forum: Engine & Drivetrain
