Speed Sensor Issues
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Joined: May 2006
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Speed Sensor Issues
I put a straight axle conversion kit in my 95 bronco and a 77 dana 60 in the back which does not have speed sensor on it and 95 ford 8.8 did now ive got trans problems the ABS light is on what do i do im lost ive been searching for 2 weeks and ive got nowhere.
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Joined: Sep 2002
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From: Gateway to the West
Welcome to FTE and the Big Bronco Forum. I am afraid I must bear the bad news. Without the VSS, the ECM has NO idea what the vehicle speed is and it will never function properly without it. You will have to find a rear axle that has the VSS or gut the entire electronic system in the truck and swap to a different automatic. The VSS tells the PSOM (Programmable Speedometer/Odometer Module), the ECM (Engine Control Module i.e. main computer) and the ABS computer how fast the truck is going. In turn, the ECM controls the shift parameters for the E4OD transmission and the PSOM controls the cruise control system and the speedometer. The ABS computer, well, controls the anti-lock system. The system will NOT function properly without the VSS. Some later model heavy-duty axles had the provision for a VSS but I don't recall which right off the top of my head.
I would submit that had this question been posed BEFORE the swap was made, we would have warned of this requirement. I hope you can get it straightened out, its a tremendous undertaking to have thwarted by something that seems so trivial until you realize exactly what it does.
I would submit that had this question been posed BEFORE the swap was made, we would have warned of this requirement. I hope you can get it straightened out, its a tremendous undertaking to have thwarted by something that seems so trivial until you realize exactly what it does.
Last edited by greystreak92; May 9, 2006 at 06:45 PM.
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