Diesel Tuner's Blog

3 Tips to Prevent 2001-2005 Duramax ECM's From Crashing!

[fa icon="calendar'] Feb 9, 2018 2:00:00 PM / by Paul Wilson posted in LLY TCM Tuning, lly performance, LB7, LB7 TCM Tuning

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What crashes an LB7 and LLY ECMs?:

If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. 

As you're probably aware, ECMs have some small risk of crashing during a tuning flash.  Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue.

To make sure you aren't stuck stranded somewhere far from home follow these tips: 

  • Disconnect all aftermarket electronics
  • Make sure your batteries are at a full charge
  • Flash your truck at home or a local garage
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What Can TCM Tuning Do For Towing with my Duramax?

[fa icon="calendar'] Jul 21, 2017 8:50:00 AM / by Paul Wilson posted in towing, towing performance, TCM, TCM Tuning, LML TCM Tuning, LMM TCM Tuning, LBZ TCM Tuning, LLY TCM Tuning, LB7 TCM Tuning

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How does Allison 1000 TCM Tuning help with towing?

TCM Tuning is the modification to the programming calibration of a Transmission Control Module (TCM).  Ever since 2001 when the Duramax was first offered in the 2500 and 3500 GMC and Chevy  HD truck it has been paired with the Allison 1000 transmission. 

These trucks are designed for towing and if you use it that way, you can probably think of a few ways you would like your transmission to act differently.  That is where TCM Tuning may be able to help.

Learn More About Custom TCM Tuning 

Common Complaints About Stock Transmission Tuning:

  • "When I try to pass and I am in 6th gear, it is very reluctant to downshift."
  • "While merging on the express way it seemed to take a long time to get from one gear to the next. It's even worse with a trailer on."
  • "Even with tow haul mode on the truck doesn't seem to shift well since I put these larger tires on."
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