Prove which engine is installed

I need to be able to prove which engine is installed in my truck, to my dealer. It's a 2018 3500 with Aisin 6-speed automatic.

Here's the backstory. I took it in to the dealer last December, for what turned out to be a transmission low fluid level issue. That is its own story. Anyway, dealer sealed the pan leak, refilled, and decided to flash the transmission code as it still had factory transmission code and improved code was available.
Well, while doing that, I surmise that they *may* have had to update the ECM firmware controlling the engine. Well, when I picked the truck up from the shop, before I had driven it a block down the street, I noticed the ECM software was different. In fact it was so different, it just felt unresponsive. However, around town unloaded, it drives OK. Oh, forgot to mention that this happened in December 2021.

So, fast forward to a month ago, when I was actually towing. I noticed that it shakes pretty badly at high load in the mountains with a decent load in tow. Oh, I am at 98k miles today.

So, some urgency to get this fixed. I have the *High Output* engine (385/930 as I recall), but I cannot find any paperwork that says that is what I have.

I have no idea how I am going to convince the shop manager that they fouled up the flash in my truck.

Anybody have a clue how to demonstrate that this is the HO engine? I know the HO was only available in the pickup 3500.

 

Take the engine serial number to a Cummins dealer and they should be able to pull the engine specs.

 

Which side of the motor is the trans dipstick on?

Aisin on the right (says ASRC on it) and 68RFE on the left.

Aisin is also on the trans is plate.

 

If you are looking into the engine bay standing in front of the truck. So Aisin DS in drivers side for ASRC and on passengers side for 68RFE!

 

If a dealer tech can't tell what engine you have after standing right beside it, we probably can't help. I recommend another dealer. There should be an EPA/CPL tag on the block or valve cover.

 

Hard to imagine the engine type and probably serial number is not indexed somehow to the truck serial number. You would think a RAM dealer would easily know what to do, especially on such a new truck. I would definitely call another dealer.

 

Not many other ways to look at it

 

Here’s his question:

He thinks they’ve reflashed his ECM as an SO instead of an HO.

 

My truck is badged as HO...I am sure the engine numerics reflect that as well

 

The 2011-2012 HO was different than 13+ HO, and had HO badging. The 11-12 HO applied to all autos, of which the 68RFE was the only auto.

In 2013+ the HO got the Aisin and the SO got the 68RFE, neither of them got any special badging.

 

Did not know that... thanks

 

There is a label on the valve cover that tells you exactly what engine you have.

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I don't think that is possible, that system is fool proof. You can't flash something onto an ECM that isn't meant for it.

 

My 18 doesn’t have anything, at least that I’ve seen, with info regarding SO or HO. There isn’t placard about hp like my 05 had. There is a EGR/EGR cover in the way.

 

On my, that's bad, so no label anymore?

 

No, but I’m not sure when they dropped it.

 

You can plug your ESN into https://parts.cummins.com/ and look at product information. Here you can get all the info from the data plate. The data plate info doesn't show any torque specs, but it does show horsepower.

If you can't find the sticker with the ESN, you can PM or post your VIN, and I can pull up your ESN for you on QuickServe.

 

Have the dealer print you a Vehicle Health or Scan report. That will list the software PN that it is currently flashed to. Then we might be able to compare to someone that has had their truck flashed and the dealer happened to write the software numbers before/after on the RO.

 

Window sticker.

If you don't have yours still, ask the sales department to print you one again.

 

It's still there, on the top rear of the breather cover...but the pickup versions don't contain ratings info any longer. Cab chassis engines do.

The ESN is on that sticker as well as on the 'traceability label' that's on the front side of the breather cover. It should also be on a small sticker on the bottom front of the ECM, along with the original software it was programmed with.

I believe the calibrations are pulled via VIN, so maybe they fat-fingered something?