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  1. 3rd Generation Explorers | 2002-2005
    Hey, guys! 2003 Exploder 4.0L 4WD (I'm assuming it's a balance shaft motor), 182k. Engine is making noise. Sounds like the dreaded timing chain rattle. Since the timing chain tensioners are spring loaded hydraulic pistons I'm thinking of running a thicker viscosity oil and/or adding Lucas to...
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