Recent content by J Tuck

  1. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    UPDATE TIME AGAIN! After testing and checking all of the fuses, I was unable to find any conclusive evidence of an electrical problem at the under-hood fuse panel... but, I do have some updates for everyone! I had seen that (comparatively to my other vehicles) my upstream O2 sensors were not...
  2. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    @p38fln I will certainly give that a try when I get time to go back out to my parents where the truck is parked currently. It's an hour drive from where I live and I just don't have the space here in the city to park two vehicles currently. It probably doesn't help that this truck was a fire...
  3. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    This year of expedition (2007) does not have a FPDM (Fuel Pump Driver Module). It's simply driven by a relay controlled by the ECM. And yes, we have swapped all the relays around several times for troubleshooting... But that was a awesome question. Also, unfortunately, this year of expedition...
  4. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    Update time again. Not a day after my last post, the surge came back. We found an injector (#6) that looked to be leaking out slowly through the electrical connector... so I changed all the COPs and Injectors, but the surge still continues. I'm looking for potential solutions. My findings: we...
  5. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    Well, update time, finally. I drove the truck on and off until about the start of the year. It was nice to have around for the snow... but then I parked the truck for about three months. The battery died in that time. We came back to it and charged it up and drove it around for a bit. Didn't...
  6. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    Hey guys, just test drove it again today and took some log data. Firstly, I tried removing and reconnecting all ECM connectors in the engine bay. No change. I also tried removing the ground cable, draining the capacitors for a good 10 minutes with a jumper, then reconnecting the ground cable...
  7. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    Yes, was doing the bucking before changing the plugs, too. No difference after changing. Bucked on the second drive after changing. Wasn't doing it everyday at that point though. It's everyday now. Edit: Coil Pack plugs are in good condition and clip in securely.
  8. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    I will give the disconnect and drain the capacitors in the computers a try (re-learn). That's a no cost solution I haven't tried yet.
  9. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    I changed the plugs maybe 1000 miles ago now. We changed all 8 myself. Trans Flush was about 500 miles ago now. MAF about 250 miles ago. I will certainly go through all my connectors and check grounds. Good things to try... That's what I'm looking for. Is did check fuel pressure and it's...
  10. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    Just a little more information: Truck has 193,000 miles. I believe most of it's parts to be original (was owned and maintained by a local fire department, I'm second owner). When I start from a light and floor the accelerator, it will buck all the way from start until about 5000 RPM in second...
  11. J

    2007 Expedition - Surging/Bucking while Driving - No Codes - No Misfires

    I've got a 2007 Ford Expedition (Limited 4X4) that I've been having trouble with for a while now. It bucks/surges while accelerating, and while cruising at highways speeds (any and all loads). It seems to run fine right after starting up after sitting overnight, but once I've been driving awhile...
  12. J

    Hesitation/Bucking @ 45 MPH under very light acceleration

    Hey there, I think I am experiencing a similar issue. My 2007 Expedition is just up past 190k miles and it has almost a surge where as I am accelerating, it will accelerate, let out, come back in strong, let out, come back in, repeatedly. It will accelerate through it... but some days it never...
  13. J

    2007-2014 Data collection

    Hey there. I've got a 2007 Expedition that came as bone stock as it gets (It belonged to a fire department and was used as an emergency vehicle as best I can tell). I've since added fog lights to it (Just required a switch and lights. All the wiring was already in place). ...but the thing was...
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