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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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Old Fri, April 23rd, 2010, 11:13 AM
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I have liked my truck since I bought it. With the programmer, I love my truck now. Can't wait to get my exhaust, electric fans, underdrive pullies, and custom tunes. I was running a 0-60 time, and actually smoked the tires for the first time without the road being wet. Also, the belt chirp is pretty nice. What causes that anyway?
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Old Fri, April 23rd, 2010, 11:30 AM
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Quote:
Originally Posted by Jeb View Post
I have liked my truck since I bought it. With the programmer, I love my truck now. Can't wait to get my exhaust, electric fans, underdrive pullies, and custom tunes. I was running a 0-60 time, and actually smoked the tires for the first time without the road being wet. Also, the belt chirp is pretty nice. What causes that anyway?
Belt chirp is caused by the transmission locking up quickly during a shift, which changes the engine RPM suddenly, causing the serpentine belt to slip. It's not harmful, but it does get your attention!

- Jack
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Old Fri, April 23rd, 2010, 10:45 PM
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The "chirp" can be quieted with a Goodyear gatorback belt.

Peace!
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