RPM sensor wires spliced?

[kcinga]

Can you figure out which transmission controller your PO tried to install?

I hope the E4OD you now have is '89-'91 so it has a tailshaft output that can be used.

I don't think Mark Kovalsky (the former Ford powertrain engineer who developed the E4OD) can help you here but if we knew which controller it is there might be help troubleshooting.

Here's the pic:

PO doesn’t know anything about transmission controller that was installed, but he thinks the E4OD transmission is an ‘89.

[85lebaront2]

PO doesn’t know anything about transmission controller that was installed, but he thinks the E4OD transmission is an ‘89.

Here is an E4OD left side in a 1986 F350 crew cab.

On the right side, top of the lower portion pf the case, there will be a large plug. If it is a C6, there will be a vacuum modulator out the back of the case. The cross member will be moved back roughly 6" from where it would be for a C6 and the holes would have to have been drilled as there were no E4ODs prior to 1989.

[kcinga]

Here is an E4OD left side in a 1986 F350 crew cab.

On the right side, top of the lower portion pf the case, there will be a large plug. If it is a C6, there will be a vacuum modulator out the back of the case. The cross member will be moved back roughly 6" from where it would be for a C6 and the holes would have to have been drilled as there were no E4ODs prior to 1989.

It’s an E4OD transmission. It has a 20bolt pattern for the pan.

I don’t see any evidence of a transmission controller being added. It looks like transmission was connected to existing RPM sensor on the 6.9l diesel.

So, it sounds like I should look for an E4OD transmission controller from Baumann? Anything specific needed for my 1986 f-350 diesel?

I do see a wireless option for a diesel tachometer (sold by Autohack) that involves installing a sensor in oil pan (replacing pan drain bolt) and magnets on harmonic balancer. Not sure if it will work for what I need or not.

I’d be curious to hear feedback on best option for my setup (i.e. 6.9l diesel with ‘89 E4OD transmission) by those on this forum that have way more knowledge than me.

 

[ArdWrknTrk]

It’s an E4OD transmission. It has a 20bolt pattern for the pan.

I don’t see any evidence of a transmission controller being added. It looks like transmission was connected to existing RPM sensor on the 6.9l diesel.

So, it sounds like I should look for an E4OD transmission controller from Baumann? Anything specific needed for my 1986 f-350 diesel?

I do see a wireless option for a diesel tachometer (sold by Autohack) that involves installing a sensor in oil pan (replacing pan drain bolt) and magnets on harmonic balancer. Not sure if it will work for what I need or not.

I’d be curious to hear feedback on best option for my setup (i.e. 6.9l diesel with ‘89 E4OD transmission) by those on this forum that have way more knowledge than me.

I've seen aftermarket signal generators that mount at the harmonic damper and heard of ones that read off the alternator.

I do know the ISSPRO R8901 unit works on my buddy's '89 350 dually. (for a tach, he still has the C6)

I can visualize how the one you mention would function, but it seems like a lot of work in an awkward and dirty location.

I'd be looking at the Quick4, for the ease of programming and features available.

If you go this route you also need the factory VSS that attaches between the speedo cable and transmission tailshaft housing.

The manual is available on their website, so you can review the installation procedure, programming and troubleshooting.

 

[Rembrant]

I'd be looking at the Quick4, for the ease of programming and features available.

If you go this route you also need the factory VSS that attaches between the speedo cable and transmission tailshaft housing.

The manual is available on their website, so you can review the installation procedure, programming and troubleshooting.

I just installed my Quick4 transmission controller yesterday...and by installed, I mean attached it to the inside of the firewall...the truck is not running yet. I was reading the instructions though, and I didn't see anything about connecting to a VSS, but you definitely need a TPS. I have the 4R70W, 4R75, AOD-E manual though...not the E4OD, but the controller is the same regardless.

 

[ArdWrknTrk]

I'd be looking at the Quick4, for the ease of programming and features available.

If you go this route you also need the factory VSS that attaches between the speedo cable and transmission tailshaft housing.

The manual is available on their website, so you can review the installation procedure, programming and troubleshooting.

I just installed my Quick4 transmission controller yesterday...and by installed, I mean attached it to the inside of the firewall...the truck is not running yet. I was reading the instructions though, and I didn't see anything about connecting to a VSS, but you definitely need a TPS. I have the 4R70W, 4R75, AOD-E manual though...not the E4OD, but the controller is the same regardless.

It is optional. Pin 12

See page 33 of the setup manual.

*TPS should be right there on the injector pump (Y/G/Bk)

[Rembrant]

It is optional. Pin 12

See page 33 of the setup manual.

Pin 12 is a digital speedometer output though, not input. It's for connecting to a speedometer with a digital/VSS input. I plan on using this myself.

You can input a tach signal though...it is not required, but it is optional. I'm not sure if it's beneficial or not.

I don' t think there's any speed signal inputs required for the controller...not that I'm aware of at least. I don't know anything about the E4OD, so all I have been reading about is the 4R70W that I have.

 

[85lebaront2]

Thanks! Still trying to understand what I’m seeing. I see lines 11 and 12 coming from tachometer with color designations (like dg/y=dark green with yellow stripe), but not sure what C130 is and why I’m seeing a wire coming from both ends of RPM sensor. I’m aware of the 1-inch nut with 2 wires for one connector, but previous owner rigged up something else entirely. According to your diagram, I should see DB/Y colors on one end and BK/LG colors on the other end, right? At the moment, I see 2 black wires going from one connector of RPM sensor, which goes behind alternator. Other spliced-in connector (going to dash, I think) has red color from one of its wires. Faintly seen in attached photo. Thoughts?957A99F2-F5EC-4D4C-82C1-E6894DE6BD3C.jpeg

Looking at the picture, I see the rpm sensor wiring is tapped and I see a TPS sitting on the side of the injection pump. On 1987-1991 trucks, if there was an EEC it would have been located at the left kick panel area. 1985-86 EFI trucks had it located to the right of the steering column inside the cab.

See if you have a bunch of wiring going through an oval rubber plug near the left valve cover, if so, the TCM is probably where the EEC would go (same size and shape).

I have a friend in Dover DE who is running an E4od on a carbureted 302.

[kcinga]

Looking at the picture, I see the rpm sensor wiring is tapped and I see a TPS sitting on the side of the injection pump. On 1987-1991 trucks, if there was an EEC it would have been located at the left kick panel area. 1985-86 EFI trucks had it located to the right of the steering column inside the cab.

See if you have a bunch of wiring going through an oval rubber plug near the left valve cover, if so, the TCM is probably where the EEC would go (same size and shape).

I have a friend in Dover DE who is running an E4od on a carbureted 302.

I did see this information online in regards to VSS and E4OD transmissions: “ 89-91 T cases use a VSS speedo cable combo”. So, if I get a Baumann Quick 4, it’s possible that I have everything I need to get E4OD transmission working on my 1986 F-350 6.9l diesel, right?

[Rembrant]

I did see this information online in regards to VSS and E4OD transmissions: “ 89-91 T cases use a VSS speedo cable combo”. So, if I get a Baumann Quick 4, it’s possible that I have everything I need to get E4OD transmission working on my 1986 F-350 6.9l diesel, right?

Yes, I believe so, but you'll have to confirm what year or generation your transmission is before ordering a Quick4 controller. They come with different harnesses for the different gen transmissions, so make sure you get that part right. They have a good picture guide showing the different connectors.

I'm still a bit confused on the speedometer cable/VSS combo and why the Quick4 needs it. The E4OD should have a speed sensor already built in, and there's a plug in the Quick4 harness for it. Maybe there is something different with the 1989-1991 E4OD regarding this as it still used the cable speedo in those early years. I know the 1992-up transmissions will have an integrated speed sensor, but maybe the 1989-1991 E4OD does not, and the VSS is located in the cable.

This truck is a 2wd correct?

Does this E4OD have a speedometer cable drive in the tail housing?