ECU update at Dealer

Hey guys/gals,

I went into the dealer for my 10k service Friday. I've been complaining every time about the hard downshift or "clunk" when the engine temp is cold.

They told me there was a new ECU update and flashed my ECU while it was in for service. It's even listed on my paperwork.

The truck definitely accelerates much much better than ever before! The throttle response feels better. It also seems to shift better than before. I don't have to mash the throttle to get it to move, just ease on the accelerator and off we go!

Has anyone else had an ECU update recently? Can anyone verify what was changed in the update?

 

I have not. There is a TCM reflash and I believe there is even a revised reflash out too - but a ECU reflash I am unaware of

 

I already had the newest transmission software, there was talk from the service advisers that a new one was on the way at my 5k service. I was surprised to hear there was an ECU update this time around.

 

Mind posting an image of your last R.O. or receipt from the dealer describing said ECU update?

 

Had the same done a month ago, not sure on details of the flash but
it definitely improved things.

 

There's no description, which is why I was hoping someone might have the details.

 

Good to know I'm not the only one and it's not a placebo affect.

 

After that, I started running premium as well and it felt even better.

 

Hmmm...I may have try that too!

Thanks!

 

i actually went in yesterday for some weird shifting problems, they reset my ecu and updated it, but my question is, is this the new one?

it feels alot better now and holds its shifts nicely.

 

Is this really a new update? Or is it 04B03?

 

That definitely looks like the TCM update. Especially since its paired with a transmission complaint issue. I think their software has it grouped or coded with an 'ECU' code in the description.

 

Unknown...I guess that's what I'm trying to find out.
What I do know, is the truck is fun to drive now . Ok...burning rubber might be over exaggerating...but it's definitely not the same as before.

 

Please let this be an ECU update. I am on the verge of trading in my truck, because of the horrible throttle mapping, and I even have the manual.

 

I am wondering if this will apply to MTs as well? The hole in the mid-RPMs seems to be getting bigger for me.

I will ask about this, but I'm only at about 1,400mi right now.

 

I just scheduled my 10,000 mile service and asked about any update. The dealership I go to was unaware of anything for the M/T. I will pursue it further in a couple weeks when I am scheduled to drop it off.

 

Thanks!

 

Staying tuned as I'm sitting at 3,900 miles now on the 6-speed manual trans.

 

Look at the OV tune - he's working on getting rid of that weird throttle map delay that makes shifting such a pain with the MT. I have the tune on an Auto after doing the TSB update and it is like a different truck...

 

I have been following the MT tread and am very much considering it. But, it is going to take sometime before I can drop that much money for a tune. It would be great if an ECU update can tide me over for a while.