Recent content by Jeremy Barnhart

  1. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    I'll check it out tonight and see. How difficult are they to replace if needed?
  2. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    It holds first and second only but when I shift into drive it will only actually go into third if I accelerate really hard and then let off of the throttle, but a soon as I hit the throttle again it shifts right back down into second. Since it's been doing this I've never gotten it into over drive.
  3. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    I have the ELM327 with Forscan. It read the code that told me that the batteries had been disconnected the P0603. Other than that it it hasn’t shown anything. Sent from my iPhone using Tapatalk
  4. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    It doesn’t show me anything as far as codes. It even had a check engine light the other day because I unplugged the map sensor, but it didn’t record any codes. That seems weird to me but I have very little experience with these trucks so maybe it’s normal. Sent from my iPhone using Tapatalk
  5. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    Yes it was completely flushed and has a brand new cooler Sent from my iPhone using Tapatalk
  6. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    I bought the truck knowing that I would have to rebuild the transmission. The original had grenaded the planetaries. After I got the transmission fixed it worked fine until it didn’t. Someone else told me that maybe it’s a shifting solenoid that didn’t get replaced during the rebuild, but I...
  7. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    I checked the tps and the map and they both seem like they’re okay. I did pull the map sensor connector while the key was in the on position with the engine off and it threw a cel, so I turned it off and hooked up the forscan and turned the key back to the on position and the cel disappeared and...
  8. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    I'm using the ELM327 OBD2 Scanner USB Scan Tool FORScan OBD2 Adapter with FORScan. It only came up with P0603, which I was told by a mechanic is there because I changed out the batteries.
  9. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    I took the cat off and it still looks good I guess. I can still see all the way through it like a heavy screen door. I ran out of time to test the sensors. I’ll have to do it tomorrow. Sent from my iPhone using Tapatalk
  10. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    I'll take the cat off tonight then too and see how she runs.
  11. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    Thank you. I will try this when I get home tonight. One other question is about the cat, it looks like it's the original. Would that all of the sudden clog up and cause the truck to go into limp mode?
  12. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    Do I check the map with the engine running? Sent from my iPhone using Tapatalk
  13. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    I cleaned the sensor last weekend. What should I look for as far as readings for the map and tps? I’m a new owner as far as powerstrokes are concerned, I have no experience working on them. Sent from my iPhone using Tapatalk
  14. Jeremy Barnhart

    Source for Motorcraft TPS sensor?

    What is the IVS?
  15. Jeremy Barnhart

    1996 F Superduty Won't Stay in Third Gear

    It's a 1996 F450 or F-Superduty, 4x4, and it has the E4OD transmission. It has about 87,000 miles on it and it looks like it's spent most of those at slow speed because it has 27,000 hours on it.
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