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Question Asked: My blower motor doesn't always work.
February 10, 2014, 12:27 PM
My blower motor, only in winter, doesn't always work. It will usually work when I start the car. Once I start driving, it stops working. It will usually work and stop when I hit bumps. Other times it works, I hit a bump, then it won't come back on. The colder it is outside, the harder it is for me to have it keep working.
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Problem Reported: Speedometer or Other Instrument Panel Gauge May Work Erratically
September 15, 2010, 10:09 PM
<p>The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault.</p>
Problem Reported: TSB For Possible Ejection of Spark Plug From Cylinder Head
May 27, 2010, 11:08 AM
<p>The Ford F-150 has known issues with the V8 engine ejecting <a href="/spark-plug">spark plugs</a>. This will make a tapping or knocking noise, plus the engine will begin to misfire at all speeds. The <a href="/check-engine-light">check engine light</a> will also illuminate.</p> <p>The threads on the cylinder head are too short and soft, allowing pressure from combustion to overwhelm and destroy the threads.&nbsp;</p> <p>When the spark plug ejects, the cylinder head becomes damaged, necessitating repair of the spark plug port threads, or replacement of the <a href="/cylinder-head">cylinder head</a>&nbsp;and cylinder head gasket.&nbsp;</p> <p>Ford has recommended a method of repair for the cylinder head that prevents the spark plug from ejecting under future use. Replacement of all spark plugs is not necessary, but an updated spark plug design can help prevent this from happening in the future.&nbsp;</p> <p>There is a technical service bulletin for the V8 engine.</p>
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