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  1. R

    I think it is sludge but not sure

    I'll take some pic of the sludge. At 133k, my daughter was driving normally and apparently the rear chain in the engine jumped when the transmission skipped second gear, revved too high and the chain flew off. Apparently, this is rather common for this year (s) of engineered trannys in a ford...
  2. R

    I think it is sludge but not sure

    We had to replace my daughters 4.0 Explorer engine after hers failed at 133,000 miles. The engine we had it replaced with reportedly had 62,000 miles on it. I have always changed my oil on our cars 3 - 5,000 miles. Obviously I have no idea what the engine's PO did. BUT - when I check her oil ...
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