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  1. J

    1997 E450 Parking Brake Assembly

    Well I thought I'd give an update. I took the vehicle to a second mechanic after replacing fuses and not finding any electrical problems. This mechanic took the parking brake assembly apart and showed me how it had overheated and burned up. They also dropped the pan on the transmission and...
  2. J

    1997 E450 Parking Brake Assembly

    These readings were taken with the engine running.
  3. J

    1997 E450 Parking Brake Assembly

    Okay! So I am getting 1.47 volts from the connector to the speed sensor at the transmission and nothing from the sensor on the differential.
  4. J

    1997 E450 Parking Brake Assembly

    I didn't test the wires to see if they were live. I'll start the truck and check. No, the OD light was not blinking. No lights were on at all. Let me see if I can crawl under the rig and test for power real quick.
  5. J

    1997 E450 Parking Brake Assembly

    Well, here's the latest. I pulled out my multimeter and tested both sensors. The sensor at the differential tested fine, the one at the transmission tested bad. I went ahead and replaced both of them anyway. The new sensor in the transmission doesn't have the proper 20 tooth gear yet, all I...
  6. J

    1997 E450 Parking Brake Assembly

    Interesting! So, there wouldn't be two sensors at play, even if they were both plugged in? There's no cruise control in the vehicle, it's very basic. The stores around here do not have that gear driven speed sensor in stock, so I guess that leaves me with the rear sensor. This has the same...
  7. J

    1997 E450 Parking Brake Assembly

    I did find another sensor at the top of the rear differential. It looks fine to me, I took a few photos. Both the sensor in the parking brake assembly and this one were connected to wires which looked fine.
  8. J

    1997 E450 Parking Brake Assembly

    How does that fix the shifting issue? How does the computer talk to the transmission without the speed sensor?
  9. J

    1997 E450 Parking Brake Assembly

    Here's the speed sensor
  10. J

    1997 E450 Parking Brake Assembly

    Let me pull that out in the morning and I'll post some pics.
  11. J

    1997 E450 Parking Brake Assembly

    Is there something I can do to fix that? Something not more expensive than replacing the assembly?
  12. J

    1997 E450 Parking Brake Assembly

    Okay, let's try this again...
  13. J

    1997 E450 Parking Brake Assembly

    The pics aren't very exciting...
  14. J

    1997 E450 Parking Brake Assembly

    Is it possible the parking break assembly is fine, provided I fill it with ATF and replace the speed sensor? The mechanic never took it apart to verify anything, he saw the melted speed sensor and proclaimed the parking brake assembly to be bad.
  15. J

    1997 E450 Parking Brake Assembly

    I guess that makes sense, those gears gotta make be made with some thick steel.
  16. J

    1997 E450 Parking Brake Assembly

    The speedo melted. The gears on it are gone. The mechanic was concerned that the power brake assembly melted onto the transmission or possibly also melted the splines on the output shaft of the transmission. What do you think the likelihood of that is?
  17. J

    1997 E450 Parking Brake Assembly

    Hi, I'm new, but I've been searching around and can't find a solid answer to my question. I bought a 1998 Eldorado Type 2 Diesel Bus built on a 1997 E450 with the 7.3 Powerstroke. I got a good deal, traveled 1,000 miles to pick up the bus and started driving it home. About 400 miles into my...

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