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Thread: 4L60 sliping
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Old 07-03-2013, 11:03 AM
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A bad TPS can cause a series of problems.Hard shifts,no 3rd/OD.Suddenly dropping out of D or OD back to 2nd,no TC lockup & other performance issues.It controls,lockup,shift points,etc.If you probe the black & blue wires with a digital meter,it should read 0 @ closed throttle,then as you open throttle,the reading should increase smoothly with no spikes or flat spots up to approx 5 @ WOT.You can unplug it & see iff trans shifts thru all gears w/o slippage,but'only long enuff for a quik ck.Do not operate vehicle this way.Trans will be operating @ full line pressure.Do not drive any farther than necessary.
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