Duramax “upgraded” the injection pump for the LML models, going from the Bosch CP3 to the CP4.2. To handle the additional power capabilities of the engine the fuel rail pressure was increased to 30,000psi. However, the pump actually flowed 20% less fuel than its CP3 predecessor. This makes the CP4.2 highly … Zobacz więcej One of the emissions additions to the LML was the inclusion of a selective catalytic reduction (or SCR) system as mentioned at the start of this article. SCR requires diesel exhaust fluid “DEF” to operate properly. … Zobacz więcej The goal of DEF and the SCR system is to reduce the amount of nitrogen oxide that enters the atmosphere via exhaust gases. The system has two NOx sensors: one before the DEF injection location and one after. The goal … Zobacz więcej If you’ve noticed a trend with the LML, it’s that the DEF systems are problematic. This was new technology at the time and was bound to have its fair share of issues. On the LML, the DEF system is equipped with a typical … Zobacz więcej Witryna2 lis 2024 · Features. 16oz AR9100 Friction Modifier - treats one Power Stroke. Fixes 6.0L and 7.3L Power Stroke cold start injector problems. Reduces wear and extends component life. Reduces engine noise, vibration and heat. For all diesel and gasoline engines, gearboxes, hydraulics, differentials and power steering systems.
LML Catastrophic Pump Failure Common Problems
Witryna14 sie 2024 · Duramax Engine LLY 2004.5 to 2005. 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 … Witryna13 mar 2024 · There is one circuit for each injector to control the ground and turn the injector ON. If a circuit fault occurs for a single injector,a P0201-P0208 DTC will set.The group DTC will also set and Both injectors in the group will be disabled. Loose one you will only loose two total This is for the LML cross keys pub ancrum
LML Duramax Problems [You’ll Be Stuck If This Happens!]
Witryna17 mar 2024 · CP4 High Pressure Fuel Pump Failure. CLICK HERE to purchase our LML CP4 High Pressure Fuel Pump Failure Kit. The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique … Witryna2015 GMC Sierra 3500 HD SLT 6.6L (8 LML) 6-spd (1000) — 1GT423E83FF154705. Crank / No Start. Excessive Fuel Return. This one stalled while driving, and will not build enough fuel pressure to be measured by the Fuel Pressure Sensor. The priming pump will build pressure, but the pressure quickly bleeds off. It pulls 2 inHg while cranking. Witryna1 lut 2024 · GM had resolved the injector problems by the time the LLY engine was released. Instead of injector problems, the LLY had overheating issues when driving in hot temperatures or towing heavy loads. The stock air intake system of the engine caused this. ... The LML was rebuilt for its debut in the 2011 model year. The power … buick key fob fix