Allison Transmission TCM Repair for Chevy HD Silverado 2500, 3500 & GMC HD Sierra 2500, 3500

[@thomaswilson9221]

Upfix repaired my TCM in June 2023 and I couldn't be happier with the results. Great job Upfix and thanks for getting me back on the road.

[@upfixauto]

Thank you so much for your positive feedback! We're thrilled to hear that you're satisfied with our TCM repair service. It's our pleasure to help get you back on the road. If you ever need assistance in the future, don't hesitate to reach out. Drive safely!

[@dinoco3527]

How much?

[@thomaswilson9221]

1300.

[@thamaraliraq9305]

Good evening my friend, I work in this field and I need how many pieces of tcm transmission 2500 rds and 3500 rds how much the price

[@upfixauto]

More info is here www.upfix.com/product/chevrolet-2500-2009-2015-allison-duramax-gm-tcm-transmission-control-module-repair/

[@daytoncooper3150]

can you flash a older 5 speed TCM to a 6 speed TCM?

[@upfixauto]

Please reach out to us via the 'Custom Repair Request' at the top of our website upfix.com. There you can provide your VIN and part number. If the TCM is original, depending on your year, make, and model it might be possible to re-flash it. If you replaced your 5-speed with a 6-speed transmission the internals of the TCM for a 6-speed might be physically different which means we'll only more know once we have more information about your vehicle and what's been done to it.

[@bigdredre75]

I have a 2010 silverado 3500 HD. I removed the fan shroud and I still don't see it. I've looked everywhere.

[@upfixauto]

If it's a 6.6L 3500 with an Allison transmission it should be mounted right on the back of the fan shroud no need to remove the fan shroud itself. It's possible that someone has already re-routed it somewhere else. On top of the fuse box is a popular spot to relocate it.

[@JoeBlack1108]

How to keep it from breaking again after being repaired?

[@upfixauto]

We use better upgraded quality parts.

[@larryfavela3841]

do you off or have any knowledge for 2019 3500 tcm?

[@upfixauto]

What issues are you having with that TCM?

[@larryfavela3841]

@@upfixauto well my engine light came on and said reduced power, shifts were irregular or unpredictable. when i scanned it said the tcm

[@upfixauto]

No it seems like problem is probably not with TCM. Since your vehicle is 2019 and today is year 2024. It is probably still under warranty if the TCM is bad.

[@namewitheld]

My company own two of these trucks and they are absolute trash. GM and Allison should be sued.

[@upfixauto]

Yes, this is a big problem 😞