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Hi new here and am really impressed with what I am finding here, looking forward to being a regular!
I just bought a mint 1999 F250 Triton V10 (5 speed) and now less than a month after getting it I have a low speed miss I just can't seem to solve. First the problem, during acceleration all seems fine and it runs great but at low speed and below 1800 RPM or so it misses noticeably and if I depress the throttle without down shifting to bring the RPM up to at least 2000 it will shudder quite badly. The only code I am getting is for "random multiple cylinder misfire detected". So far I have checked the catalytic converter, replaced the O2 sensors, replaced the plugs, Checked the EGR and DPFE, checked the TPS, checked the ignition coils (only did resistance checks with DVOM) determined there are no vacuum leaks and checked the fuel pressure. I also replaced the fuel and air filters and cleaned/tested the MAF. At this point I simply don't know what else to do and I thought I had covered about everything so I am starting to think maybe one or more of my checks was not as thorough as I thought. How else should I check the coils besides the resistance checks?
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F250 Super Duty V10 misfire
