97 ps 198k - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 4 (permalink) Old 02-28-2019, 02:43 AM Thread Starter
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97 ps 198k

Gutless. Truck starts trembling even on a small grade and down shifts. Fresh filters/service. Noticed today while in park, hold throttle down at any rpm within a few seconds without moving my foot at all the rpms drop drastically. Almost like putting a load against the motor. Thoughts?
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post #2 of 4 (permalink) Old 02-28-2019, 06:52 AM
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Re: 97 ps 198k

Fuel supply issue. Filter or regulator screen clogged? Put a test gauge on it or it’s all just guessing.

1997 CCSB, 7.3/E4OD
KC TP38R, CNC Fab Bellowed Up-Pipes, Full Force Stg 1 injectors, 3" DP, 4" exhaust, CNC Fab HPOP, Mark F E-Fuel, 7.3 Intercooler, 1.0 Exhaust Housing, TS Chip, remote coolant filter, and VB.
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post #3 of 4 (permalink) Old 02-28-2019, 01:02 PM
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Re: 97 ps 198k

You really need to get a reader that can see Fords live data while the truck is running.

Your problem can be any number of things starting with the fuel or all the way to the oil that you are using.

96 F250 XLT 4x4, 4:10 gears, 5 speed, Tymar intake and HX hose, downpipe, pyro and boost guages, coolant filter, Luc clutch
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post #4 of 4 (permalink) Old 02-28-2019, 02:42 PM Thread Starter
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Thanks for the feedback. For what it’s worth I took the tps off the pedal assembly sprayed it with wd-40 and the only noticeable change was now you can hold the rpm’s wherever you wish (in park) and it holds there. It no longer backs off on its own. But didn’t change the way it runs under power
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