Question about 2004 Ford Ranger

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04 ford ranger rod bearing

2004 ford ranger 3.0 auto 42,000miles
i was driving along towing a trailer that is within vehicle towing capacity, and the oil light came on i immediately pulled over and stopped the check engine light came on i had it towed home and hooked my scan tool up code p0340 cam sensor fault.
i had it towed to the dealer they did some testing and pulled the oil pan and told me it spun a rod bearing
it had plenty of oil (full synthetic since first oil change)

what causes a rod bearing to get spun?

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  • stephen gosser May 21, 2009

    could the timing chain jumping cause the rod bearing to spin? is the oil pump driven off the cam on this engine? or is it just a coincidence that these things happened at the same time?

  • stephen gosser May 21, 2009

    i was the last oil change was about 2000 miles ago and it has had synthetic oil in it for about 40,000 miles changed about every 3-4,000 miles

  • yadayada
    yadayada May 11, 2010

    if it spun a bearing then that what is the problem, what is it u want from me?? I can neither confirm this or deny it, not there to see the problem, sorry.

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  • Ford Master
  • 1,869 Answers

Your vehicle timing chain jumped a sprocket
spinning a bearing means that the bearing does not get enough oil between it and, it's rod; causing the "babbet" a soft slippery metal lining the bearing; to heat up and, weld it's self to the crankshaft or. piston rod

Posted on May 20, 2009

  • Jim Goldsmith
    Jim Goldsmith May 21, 2009

    the oill pump filter clogged due to the detergent action of the new synthetic oil scrubbing the old dry, hard petrolium oil flakes off of the cylinder walls and, the debris falling into the oil pan then: the crankshaft bearings and, the piston ring pins and, camshaft bearings started to seize due to not being bathed in oil by the pump through oil galleys and, slinger rings; friction heat then caused a drag on the engine until the piston rod bearing burned onto the crankshaft siezing and, causing the timing chain to jump the camshaft gear

    Had you not been towing right after an oil change this probably would not have happened...a perfect storm

  • Jim Goldsmith
    Jim Goldsmith May 21, 2009

    I know; but, when we drain the oil all the gunk just doesn't come out and, towing really heats up and, turbulates the oil in the pan blocking the oil filter

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