Knocking sound inside rear wheel wheel cover.

Asked by Jan 18, 2017 at 02:41 PM about the 2008 Ford Expedition EL XLT

Question type: Maintenance & Repair

Knocking starts when ignition is turned on but engine is not operating. The knocking can be heard in 14 knocking sound increments. The A/C system is not on and the knocking is still present when ignition is engaged in auxiliary position. What can that knocking sound be.

1 Answer

10

It happened to me 3 times and it was a motor in the back of the Expedition. They had to take out the back passenger side panel to replace this motor. Had something to do with the heater.

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