Thread: How can I tell if my torque converter is locked or unlocked?
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Old 06-09-2009, 08:50 PM
kingfish51 kingfish51 is offline
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Join Date: Dec 2003
Location: Mount Airy,MD
Vehicle: 2009 Ford F150
Posts: 4,159
Easily, assuming you have a tach. When the TC is locked, and you give a little gas, the RPMs only rise with speed. When unlocked, the RPMs rise and lower with the gas pedal. Give it gas, RPMs rise, let off they fall.
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