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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#1
Wed, February 11th, 2009, 11:45 PM
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I asked the same question. What I did was went to my friends exact same truck and listened to his, and it has the same sound. You will ony hear it when you open the door and listen for it when just turning the key to " on " postion. It is just the sound of the fuel pump primimg up.
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Hybrid Mode
