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  1. A

    not the typical ohv noisea

    Starting off its a 99 explorer, 2wd, auto, ohv. Im far to familiar with the valve chatter, ticking, marbling, chirping that these 4.0 ohv's can produce. I have a strange knocking sound almost when I put the truck in gear and have vehicle stopped. From what I can tell its coming from passenger...
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