Is the LMM a good Duramax?

Is the LMM a good Duramax?

Consistent to its very similar LBZ counterpart, the LMM is a highly reliable engine. The DPF is a hot-spot for failure so beware that you will probably end up with a few thousand dollars of DPF/emissions repairs, however you can *illegaly* remove this potential problem by removing the DPF system.

How often does an LMM Regen?

However, the fuel required to perform an active regeneration cycle (which occurs about once every fillup or roughly every 400 miles traveled) is the primary reason why the LMM-powered trucks took a hit in fuel economy.

How much horsepower does a LMM have?

6.6L Duramax LMM Specs

Engine: 6.6L Duramax LMM, 90 degree V8 diesel
Peak Horsepower: 365 hp @ 3,100 rpm
Peak Torque: 660 lb-ft @ 1,800 rpm
Engine Dimensions: Length Height
Approx 30″ Approx 32″

What’s the difference between LBZ and LMM?

Over all there is little difference between the the LMM and LBZ. LMM has additional emission plus an air intake valve but other than that not a big difference. Stock mine does 18mpg on the highway I have seen a little over 21mpg with some of Nicks tuning. I seldom use that tuning though.

What does LMM Duramax mean?

The LMM Duramax refers to Chevrolet Silverado HD and GM Sierra HD trucks equipped with the 6.6L Duramax diesel engine between the years of 2007.5-2010. It was very similar to the LBZ, but it featured an all-new emissions device, a diesel particulate filter.

Does the LMM Duramax use DEF?

The LML Duramax is equipped with a SCR system that requires the use of DEF (diesel exhaust fluid). DEF is injected into the exhaust stream where a chemical reaction occurs that reduces NOx emissions.

How big is a stock LMM Turbo?

Registered. 61. xx its very close to 62mm.

Is the LMM as good as the LBZ?

When does the PCM set the code p0777?

The code P0777 is set by the PCM when the Pressure Control Solenoid “B” is stuck in the “On” position. Example of a transmission pressure control solenoid: What is the severity of this DTC?

What does the p0777 OBD-II trouble code mean?

When the P0777 OBD-II trouble code is set, the Powertrain Control Module (PCM) has detected a problem with the Transmission Pressure Control Solenoid “B”. Most automatic transmissions incorporate at least three solenoids that are solenoid A, B and C. The trouble codes related to the “B” solenoid are codes P0775, P0776, P0777, P0778 and P0779.

What does DTC p0777 mean on a GMC Acadia?

For example, on the GMC Acadia, actuating pressure control solenoid B allows actuation of the clutch boost valve and the clutch regulator valve. When DTC P0777 is present, it indicates that pressure control solenoid B is stuck in the open position and the Check Engine light is illuminated.

How does a PCM control the automatic transmission?

The PCM receives an electronic signal based on the pressure within the solenoids. An automatic transmission is controlled by bands and clutches that change gears by having fluid pressure in the right place at the right time.