Join Date: Aug 2007
Location: Merritt BC, Canada
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I have replaced the TPS and it has NOT solved the problem. I still lose throttle response at in each gear at a certain speed and every 4 km above 72 km.
I lose throttle response: 1st gear at 28 km and 1700 rpm; 2nd gear 38 km and 1400 - 1600 rpm, 3rd gear at 68 - 71 km it runs rough. Above 72 km I lose throttle response every 4 km - doesn't matter which speed from 77 km all the way up to 130 km.
I'm at a loss, what next?
It's a 1999 F350 Lariat Crewcab with 8 ft box and 7.3 powerstroke, basically stock with AutoPage RS-455 remote car starter, BD Turbo Mount Engine Exhaust Brake, BD X-Monitor.
... and has 431,000 km on it
Last edited by Ford CeLaVie; 07-28-2017 at 06:40 AM.
Reason: to add vehicle information