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SportTrac Discussion
Engine & Drivetrain
Transmission drive train issue
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<blockquote data-quote="Emory" data-source="post: 1042125" data-attributes="member: 74702"><p>So here is my second thread today. Vehicle: 2008 ST AWD 4.6 . At times, I may come to a stop and a nanosecond later I feel a "bump" in the drive train. Then sometimes I may be in a downhill sloping grade on the roadway with my foot basically off the gas (but not completely), when I increase the gas I might feel that same bump in the drivetrain. Don't think it's a U-joint. Other than this, the transmission shifts beautifully. NOTE: a couple of months ago, I came off the interstate to a stop light. When I began to take off, the transmission shifted up and down in a crazy fashion! I was close to an Auto Zone and pulled in to get them to scan for any codes. All we got was a bad mass air flow sensor. Bought a new one and installed it. Vehicle immediate cleared the code and shifted fine. Don't know if that sudden shifting up-down, etc, craziness has anything to do with this issue. Thanks for any comments!</p></blockquote><p></p>
[QUOTE="Emory, post: 1042125, member: 74702"] So here is my second thread today. Vehicle: 2008 ST AWD 4.6 . At times, I may come to a stop and a nanosecond later I feel a "bump" in the drive train. Then sometimes I may be in a downhill sloping grade on the roadway with my foot basically off the gas (but not completely), when I increase the gas I might feel that same bump in the drivetrain. Don't think it's a U-joint. Other than this, the transmission shifts beautifully. NOTE: a couple of months ago, I came off the interstate to a stop light. When I began to take off, the transmission shifted up and down in a crazy fashion! I was close to an Auto Zone and pulled in to get them to scan for any codes. All we got was a bad mass air flow sensor. Bought a new one and installed it. Vehicle immediate cleared the code and shifted fine. Don't know if that sudden shifting up-down, etc, craziness has anything to do with this issue. Thanks for any comments! [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Transmission drive train issue
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