What problems do LBZ Duramax have?

LBZ Weak Links The LB7 and LLY engines were known for rod weakness, but the LBZ had trouble with its cast-aluminum pistons. In higher-power applications, the pistons were very prone to cracking. LBZ Duramax upgrades with larger injectors and a larger turbo caused the majority of failures.

How reliable is a LBZ Duramax?

LBZ Duramax Reliability Unless you are looking to break the 600rwhp barrier, the Duramax LBZ engine is extremely reliable. The tune-only power capabilities combined with its reliability are what make the LBZ the most sought after Duramax today, nearly 14 years after it stopped production.

What is the best tuner for a LBZ Duramax?

Best Diesel Tuners for 6.6 Duramax Engine

  • Bully Dog 40420 – Best Diesel Tuner for 6.6 Duramax.
  • Edge Products 85400 Diesel Tuner for 6.6 Duramax.
  • DiabloSport 8245 Diesel Tuner for 6.6 Duramax.
  • DiabloSport 7202 Diesel Tuner for 6.6 Duramax.
  • Hypertech 32501 Diesel Tuner for 6.6 Duramax.

Who is the best tuner for Duramax?

6 Top Best (2011, 2012, 2013, 2014, 2015, 2016) Duramax Diesel Tuner Comparisons

TOP PICK 85400 Edge Diesel Evolution CTS2 9.7
Bully Dog 40420 GT-Platinum Diesel Performance Tuner 9.5
DiabloSport 8245 inTune i3 Platinum Performance Programmer 9.1
Hypertech 32501 Max Energy Power Programmer 8.8

What are the problems with the LBZ Duramax 6.6L?

5 Most Common LBZ Duramax 6.6L Engine Problems 1 Cracked Pistons 2 Water Pump Failure 3 Glow Plug Failure 4 Transmission Line Leaks 5 EGR Valve Failure More

Why does my LBZ diesel engine keep leaking?

The lines on the Duramax LBZ have a design fault at the “crimp” to where the crimp isn’t suitable enough to hold onto the line and prevent fluid from leaking. Leaks are most common when the fluid is cold and on trucks running high idles. Some folks have a consistent leak while others tend to only leak when the engine is cold.

How does AutoCal work with efilive flashscan?

Integrate FlashScan with AutoCal, and you instantly have your own custom handheld tuning device to sell to your customers. More than just a ‘generic handheld’, AutoCal delivers EFILive’s renowned scan tool to the tuner’s customer, allowing for the collection and transmission of logged data back to the tuner for analysis.

What happens when the EGR is stuck on a LBZ?

When the EGR valve becomes gunked up or clogged, it restricts the amount of airflow which then enters the engine, altering air to fuel ratios. The valve can also become stuck closed or stuck open which is what can cause significant performance issues. A lot of LBZ owners will essentially block out or delete the EGR itself.