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F150 start knocking...
 
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F150 start knocking indriveway

  

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I have 2010 F150 start knocking when I came too stop then stop when I take off 

Or I turn off the key and turn back on it stops


How many miles you have on that truck and which engine is it?


1 Answer
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Start off by look at the spark plugs and then the bearings. If they're ok, then look at the air/fuel mixture, knock sensor and the timing belt. The last thing to check is the pistons and see if they are bad. Worst case scenario- you have to rebuild/replace the engine.


I replace Spark plug new Camshaft Position Sensor both side
Still do the sometimes only one I stop or slow down


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