Speedo problem

[rwenzing]

Heres some pics. Looking at another post of the 4R70W OSS I'm assuming I found where it should be. There is a cap over it, it is loose as if it could be popped off. I didn't see or feel where a bolt would go to hold in another sensor.

I don't have a transmission like yours to look at. The picture in my manual shows the OSS of the 5R55E just forward of the junction of the main trans case to the tailhousing. Again, it is driver side, up toward the top, roughly where your picture shows the blue tape.

This is why I thought the wire was not a factor...I take it the ODS is not the OSS as I had thought?

ODS and OSS are independent sensors in different locations measuring different frequencies. According to the info I have, neither sensor was present in the 95/96 4R55E.

If there is no place to install an OSS as I suspect (unless it will fit in the capped looking location in the pic) and jumping the VSS signal to the OSS won't work, would the RABS signal work connected to the OSS cables?

Not likely. I believe that the pulse frequency of the RABS sensor is much higher than the OSS, even if you take the axle ratio into account.

 

[Walldingo]

Thanks, any thoughts why the O/D light wouldn't have tripped the first 3,000 or so miles I was driving the truck even though it wasn't connected to an OSS? The only thing I can think that I changed from buying until the light started blinking was the Spark Plugs, Wires, Sea Foam of Intake and gas which all have nothing to do with the trans. Had the harsh shift and lack of O/D since delivery.

 

[rwenzing]

Thanks, any thoughts why the O/D light wouldn't have tripped the first 3,000 or so miles I was driving the truck even though it wasn't connected to an OSS?

That's hard to understand.

 

[craigr]

I finally fixed my speedo problem! After replacing many components and exploring all options I traced the problem to broken ABS wires in the front brakes. I took the covering off and found some cracked wires. I cut them, soldered them and whola, my speedo came to life! I would recommend really looking at the ABS wires closely fro any breaks. Good Luck!!

 

[baddriver]

I finally fixed my problem.
The speedo circuit on the printed circuit board on the back of the instrument cluster was broken. I fixed it by taking a small wire and soldering it from where the connector from the harness touched the circuit board to the back of the pin that goes to the speedo cluster.I

I guess replacing the instrument cluster would work to.. but what can i say, im a cheap *******

 

[mamasue69]

have a 2000 ford explorer and been to garage 4x's now. speedo works for a second or two then quits. they put in used one no. then abs sensor no. they say they don't know what is wrong. they have tested to no avail. any suggestions....

 

[Cobraguy]

Does the cruise control work? Any ABS lights?