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Re: E4OD High shift points
It could still be the FIPL. It's basically a variable resistor, and it may not be giving a proper reading at mid-range. Do your same test, but move the accelerator linkage slowly open and closed and back again, and watch for a smooth, consistant change in voltage. It's best to do this with an analog (needle) voltmeter as the cheaper digital meters average the voltage and will not catch quick voltage changes.
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1985 International rollback, 6.9L 5 speed "Li'l Big Truck"
*ASE Master Certified, Medium & Heavy Trucks*
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