Join Date: Aug 2013
Location: Rose Township, MI
03 6.0 hard start rough idle low power no codes
Trying to help my buddy get his truck running right, heres what we got
2003 F350 6.0. Truck has 170xxx miles, first off is it takes a bit of persuasion to get it to start and stay running after cranking for a good few seconds. Trys, Trys, Trys then finally catches like a hard Loping CAM for a few seconds, then tones down a little and begins to slowly warm up.
Park or neutral, truck runs rough but gradually pressing pedal down will smooth it out, seems to build boost, no hissing. Truck will barely move until its showing temps are almost at full operating.
Still after warming up and running rough, putting it into gear, low power until roughly 1500 rpms, and unless it downshifts on its own or stomping on it a few times, it will not pass this rpm range, if it does down shift it jumps to roughly 2300 rpms.
going to try and start off with checking fuel filters.
1999 F350 SRW CCLB 7.3
5" MBRP Turbo Back, S&B Stage 2 Intake, Boost Fooler, FPR MOD, TS 6 POS chip with Swamps Tunes.
Tri-Pillar w/GLO SHIFT Pyro/Trans/Boost
4:89 Moative Gear sets
8" RC Lift, 16.5x12 MT Classic II rims, 39.5x13.5 Super Swamper IROK's.