Ford Repair Questions? Ask a Mechanic for Answers ASAP
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The most common cause of these vibrations are caused by a weak cylinder caused by a leaking valve.I recommend doing a compression test of the engine to find out if one or more cylinders are lower than the rest.It doesn't have to be a big drop in compression to cause the vibration.If you find a low cylinder,you will need to do a leak down test to find the cause.