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#1
11-03-2005, 12:51 PM
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Throttle Position Sensor
I have a '98 with the 5.7 and auto trans. When cruising along at highway speed I could let off on the gas and within a few seconds the trans would down shift and start to slow down. But, out of the blue it will stop downshifting and just coast. This will last say for a week or so then it will start downshifting again. This happens with or without the Cruise Control on. Could this be the Throttle Position Sensor, and if I had someone pull codes would this showup. Thanks.
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#2
11-03-2005, 01:38 PM
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Re: Throttle Position Sensor
That would be a good start.
Also check trans data and codes while you are at it. But the only real true way to test a TPS is on a lab scope. They can have a glitz or drop out that will not show up on a scanner reading or volt/ohm meter. MT-2500
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