I can hear knocking but i hear it from underneath the engine ive tried seafoam in the crankshaft but it continues to knock

Asked by Jun 15, 2016 at 11:25 PM about the 2007 Ford Expedition XLT 4X4

Question type: Maintenance & Repair

1 Answer

69,685

You have a bad rod bearing. The only way to take care of the problem would to put new bearings in on the lower end piston rods. You may want to evaluate the engine to see if it is even worth wild to do so.

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