Join Date: Aug 2016
Location: Idaho panhandle
Re: 97 F250 HD misfire under load
lookup "superduty diagnosis on the cheap" you need a scanner/app that can watch/listen/record what is happening inside your 7.3 when driving.
I paid $50 for an Android 7" tablet, $15 for the app and $20 for the OBDII cable so I can do this also
Will make it much easier to find your "miss"
Problematic / Weak spots on stock 7.3:
stock turbo pedestal / EBPV
UVCH valve cover/injector / glow plug wiring harness
1997 CCFB 7.3, ZF5, 4x4, 4.10, baby swamps, TS6, E99 spyder, RiffRaff pipes, 6.0 FMIC, RSK, 315 toyo at
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2001 Excursion 7.3, auto, 4x4, 3.73, 6" Suspension lift, 37" Dick Cepeks
2000 E350 7.3, auto 2wd, 3.73, planning a TTB 4x4 conversion
21.9 liter family