How can I tell if my DEF tank is frozen?
To verify if the fluid is frozen, the Tech 2 DEF level reading can be used. After a normal DEF tank fill, the DEF fluid level reading (on Tech 2) should have increased to 100%. If fluid was added and the level does not change, the DEF fluid may be frozen. The fluid will have to be thawed before completing the process in this PI.
Are there any major problems with the LML engine?
The buzzkill of the LML is the CP4.2 injection pump. Outside of this problem, there aren’t many major or costly common problems associated with the engine. Fortunately, there are some relatively simple ways to prevent these issues and make them less common.
Why was the LML added to the 6.6L Duramax?
However, the LML was actually the biggest overhaul Duramax had done to the 6.6, claiming to use nearly 60% of freshly designed parts not used in previous version. Frequent across all diesel engine manufacturers, the engine update was primarily driven by increasing diesel emission standards.
What makes a Chevy Duramax LML-Diesel Break?
In order to produce such high pressure inside the fuel rail, the internal parts of the CP4 are machined to a very precise and tight tolerance and diesel fuel is the only lubricant the moving parts have, which is the root of the problem.
However, the LML was actually the biggest overhaul Duramax had done to the 6.6, claiming to use nearly 60% of freshly designed parts not used in previous version. Frequent across all diesel engine manufacturers, the engine update was primarily driven by increasing diesel emission standards.
The buzzkill of the LML is the CP4.2 injection pump. Outside of this problem, there aren’t many major or costly common problems associated with the engine. Fortunately, there are some relatively simple ways to prevent these issues and make them less common.
Where does the DPF go in a Duramax LML engine?
The DPF regeneration process was overhauled by adding a 9th injector in front of the diesel oxidation cat which is located within the turbo downpipe. The 9th injector receives fuel from the CP4.2 and injects it directly into the exhaust system. This removed the oil dilution issues with the LMM engine and increased the regeneration intervals.
How to test a 6.6L Duramax diesel engine?
Choose your microphone or sound card from the drop- down list. Click Next. Click Record. Follow the directions. Click Next. 6.6L Duramax: LGH and LML Diesel Engines How to Complete the Audio Setup Wizard AW-4 Click Test Silence. Stay silent until the test is finished. Click Next. Click Finish. 6.6L Duramax: LGH and LML Diesel Engines