Below is a an E350 with a tach, as built by Ford. I couldn't remember which year Ford added the tach, but it turned out to be in 2004.

 

would be great!
i just need the pinout. That would help me a lot

 

Here's what i have.
99 cluster
01 Cluster

 

I am sure you know that Tugly has an extensive discussion of using Torque Pro in this 7.3L forum on ford-trucks.com. As an alternative you could just buy a Nexus 7, and OBD II connector and the $5 Torque Pro app and run the tach off the Nexus 7:

https://www.ford-trucks.com/forums/1...-for-7-3l.html

But as to your question, are these the threads you are looking for?

Van instruments (1995)

https://www.ford-trucks.com/forums/8...ts-1995-a.html

Finally Done, Cluster Swap w/ Tach

https://www.ford-trucks.com/forums/9...ap-w-tach.html

Also see:

Sportsmobileforum.com • View topic - Q Van Build Up

May want to pm Adventr on the SMB forum.

 

Richard which one of the links is for the 99 cluster is it the first link? Thanks for posting the diagrams.

 

Ed, Yes the first one is for the 99 cluster. And I bet you can guess what the second one is for

 

The parallel thread on the SMB forum appears to have hit a dead end.*

So do any of you knowledgeable members have a response to what I perceive is JWA's concern that the instrument cluster (for our purposes in a 99-03 7.3L) not only visually displays info (speed, rpm, etc.) but also sends info to the PCM:

"Not really chasing our tails here with this sort of swap but as you say specific details or a step-by-step tutorial doesn't exist for this---yet. Some of the challenges as I see them are Ford changes their pin out locations of the some circuits from model year to model year---make your own mind as to why they do this. :a7: This complicates things mostly from the point what I'd do on a '97 chassis might not work on a '00 and so on..........

Given that clusters are so integral to the drive train's proper function its vital they're not only connected properly but that whatever on-board electronic control or microprocessor works with the ECM and other chassis components too. If swapping a tach equipped cluster in place of those without was just a matter of connecting the gauges and adding the CTO signal this would be fairly easy.

Another hurdle I believe to exist is how best to create an adapter wiring harness (for lack of a better term) that would interface chassis wiring to the transplanted cluster. I've solved this part of it while daydreaming however proper connections and compatibility remains to be solved.

Someone somewhere knows how to do this much easier than it will turn out being with trial and error. Understanding how clusters work with the ECM, which microprocessors can be swapped etc would go a great distance making this easier but that info seems to be closely guarded, as though revealing it undermines a profit potential for those in the know. Or so far I've just not been able to find that person who'll work for pay to do this for me!

In the end trying to retrofit an OEM tach cluster into a van not originally equipped with one might be our Moby Dick----and the quest continues, titling at windmills I assume............ Que paso, Sanco?? "

* Sportsmobileforum.com • View topic - 7.3 Instrument Cluster Tachometer

 

Tim... Several times in you post above you have said "99-03" instrument cluster (for F Series Super Duty), but keep in mind that the 99-01 cluster is quite different than a 02-03 cluster, both visually and electrically. And for purposes of retrofitting into a different chassis altogether, it is the electrical/signal part that presents a few hurdles.

Ford calls the 02-03 cluster a "Hybrid Electronic Cluster" or "HEC". It contains a microprocessor as well as hardwired circuitry that communicates over the standard corporate protocol (SCP), and UART based protocol (UBP) communication networks. Communication using the SCP network transmits and receives data between the instrument cluster and the PCM. Communication using the UBP network utilizes data transmitted and received by the instrument cluster and the body security module, driver seat module and the electronic air temperature control (EATC).

Ford also states that the HEC is not repairable at the dealership level, other than a lens replacement and backlight bulb and warning iight bulb renewal. No other repairs to the HEC are authorized at dealership level, hence there are no PC board level schematics in the service information. The repair procedure is to remove and replace the cluster.

The HEC receives data sent by the PCM over the SCP network, and commands the tachometer according to the data.

If it were my diesel E-Series Van, I'd get the Auxiliary Powertrain Control Module, also known as the Auxiliary Idle Control, along with the mounting bracket designed for the vans, and simply plug that into the port under the dash that is already there for it. (not the OBDII port, but a separate port just for the APCM).

Not only will this box provide an accurate digital tach, it will also enable one to have automatic charge protection while stationary, elevating the engine idle dynamically according to the current charging/discharging state of the electrical system. Not only that, but the APCM will permit any number of preprogrammable elevated idle settings. These units were popular in ambulances, back in the days when every ambulance on the road was a 7.3L equipped E-Series extended van or cutaway.

Below are pics of the APCM from an F-Series, but the E-Series box looks the same, except it doesn't have the PTO control button, and has a different mounting bracket.

 

To All:

If you haven't been following this thread, take a look at it:

Sportsmobileforum.com • View topic - 7.3 Instrument Cluster Tachometer

shenrie has posted wiring diagrams for his successful insertion of a F350 cluster (with tach) into an '03 E350 7.3L dash.

 

Thanks Tim. Great info!

 

Keep in mind, that swap was a 1999 F350 cluster. The 1999-2001 are dumber clusters than the 2002 to 2003. In that other thread, carringb mentioned 99.5 to 2002. The 2002 will not work the same as the 99.5 to 2001. This is the important distinction I've been trying to articulate in my earlier posts on this thread.

So, if no other easier way to obtain tach info appeals to you other than an IC swap, then be sure and stick with a 1999-2001 F-Series donor cluster, even if you have a 2003 van.

 

Thanks for the remark. I have an ´01 E350 and will swap to a 99-01 F350 cluster (both 7.3 Diesel) So this should work, isn´t it?

 

To the extent that the other poster on the other forum got his to work (without cruise control indication). With your 99-01 donor cluster, you will not have to contend with the HEC microprocessor and networking protocols that Ford upgraded the 2002 instrument cluster with in the F-Series.