How do I turn on high idle lly?
High Idle Speed Enable and Disable
- Turn the ignition ON with the engine OFF.
- Depress the accelerator pedal to the floor and hold down.
- While the accelerator pedal is depressed, depress the brake pedal 3 times in less than 8 seconds.
- Release the accelerator pedal.
- Start the engine.
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 many horsepower does a LBZ engine have?
The LBZ is revered for its tune-only performance capabilities. With various upgrades, this engine is easily capable of producing over 600whp and 1,000lb-ft. of torque. However, one common failure point on tuned LBZ’s is cracked pistons.
When was the Duramax LBZ engine phased out?
When you couple the performance potential with the reliability, and lack of emissions regulating systems, it’s no wonder the LBZ is still the fan favorite over 13 years since its discontinuation. The engine was phased out in 2007 solely for the purpose of emissions regulations.
What happens when water pump on LBZ goes bad?
On the LBZ, and all Duramax engines for that matter, the impeller inside the water pump is made of plastic. The impeller is like a little rotating fan that is responsible for actually forcing the coolant through the system. If your impeller breaks or goes bad, the coolant won’t flow through the engine.
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.
The LBZ is revered for its tune-only performance capabilities. With various upgrades, this engine is easily capable of producing over 600whp and 1,000lb-ft. of torque. However, one common failure point on tuned LBZ’s is cracked pistons.
When you couple the performance potential with the reliability, and lack of emissions regulating systems, it’s no wonder the LBZ is still the fan favorite over 13 years since its discontinuation. The engine was phased out in 2007 solely for the purpose of emissions regulations.
On the LBZ, and all Duramax engines for that matter, the impeller inside the water pump is made of plastic. The impeller is like a little rotating fan that is responsible for actually forcing the coolant through the system. If your impeller breaks or goes bad, the coolant won’t flow through the engine.
What year of Duramax is best?
Any generation duramax will pull a 3 horse trailer handily. They all have their own quirks and issues that can be resolved, and once they are, you’ve got a reliable, strong truck for many miles. Most will say the 06-07 LBZ model to be the most desirable and reliable platform.
Do LLY Duramax have head gasket problems?
Registered. Head gasket issues are more common with the LLY but still not bad if your not pushing big power. Injectors are better, most problems are with the injector wiring harness. Most overheating problems can be cured with an LBZ mp upgrade and an EGR blocker.
Are there any problems with the LLY Duramax?
In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring.
What was the problem with the LBZ Duramax in 2006?
Glow plug failure was a concern on the 2006 model year LBZ and LLY Duramax models, but the problem should have been long corrected for owners of these years. The concern was that the glow plug module would over cycle the glow plugs, creating a scenario in which the tip of the glow plug could actually deform and/or break off in the engine.
What to do if your Duramax injector is not working?
To relieve this problem, the wiring harness (or affected portion of the harness) will need to be replaced/repaired. Often, you can verify the problem by wiggling the wires around the injector. If the problem goes away (even momentarily), you’ve identified the affected zone.
Are there any problems with the Duramax diesel engine?
Overheating issues with the Duramax diesel seems to be a hit-or-miss problem; some owners experience it, while others never will. Regardless, it’s more common with the Duramax than other engines.