Does a 2005 Duramax have high idle?
The engine has a cold temperature high idle and exhaust restrictor feature which elevates the engines idle speed from 680 to 1200 rpms, and restricts the exhaust gas flow, when outside temperatures are below 32°F (0°C), and the engine coolant temperature is below 150°F (65°C.)
Does lb7 have high idle?
Full manual control of the elevated idle on your Duramax truck is possible with our High Idle Kit. Operation is simple using only your cruise…
Why does my Duramax high idle?
A dealer may encounter a customer concern of an intermittent high idle. High idles may be commanded by the ECM for certain battery charging electrical loads or diesel particulate filter (DPF) cleaning processes. These idle up speeds may occur with no input from the customer.
Why can diesels idle for so long?
1. It’s okay to let your diesel idle for extended periods because it burns so little fuel. This one is not restricted to mariners. Diesels do burn very little fuel at idle because unlike gasoline engines, their throttles do not restrict the amount of air they ingest.
How long should I let my Duramax warm up?
2-3 minutes is plenty unless it’s extremely cold and you didn’t plug in the block heater. You need just enough to get oil circulated and let the pistons warm up a little, no more than 10 minutes on a very cold day (-10 and colder).
Does a 2003 Duramax have high idle?
The idle speed will increase to ~1700 RPM for 2001 – 2003 trucks. 12) If the Duramax engine is cold, it may take a few seconds to a few minutes for the high idle to engage. This is normal operation. Some have reported that it may take a few minutes for the high idle to engage when used for the first time.
Does a 04 LB7 have high idle?
The idle speed will increase to ~1250 RPM for 2001 – 2004 LB7 Duramax equipped trucks. 8) Engage the RESUME switch on the cruise control stalk. The idle speed will increase to ~1700 RPM for 2001 – 2003 trucks. 10) Stepping on the brake pedal, clutch pedal, or shifting into gear will turn off the high idle.
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.
What are the most common Duramax 6.6L engine problems?
5 Most Common LBZ Duramax 6.6L Engine Problems. 1 1. LBZ Cracked Pistons. The LBZ is revered for its tune-only performance capabilities. With various upgrades, this engine is easily capable of 2 2. Duramax LBZ Water Pump Failure. 3 3. Glow Plug Failure – LBZ. 4 4. Allison 1000 Transmission Line Leaks. 5 5. Duramax EGR Problems.
What makes the Duramax LBZ engine so reliable?
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.
When does a Duramax diesel engine start leaking fluid?
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. Fluid leaks are important to catch early as running low on fluid can cause catastrophic damage to the transmission.