What is so special about the LB7 Duramax?

The inaugural Duramax, RPO code LB7, would bring the first aluminum cylinder heads to the diesel pickup segment, introduce the same market to common-rail injection and also make its power in a much cleaner, quieter manner than the competition (i.e. the 7.3L Power Stroke and the 24-valve 5.9L Cummins).

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…

How many miles can you get out of a LB7 Duramax?

GM has given the engine a 95% rating at 200,000 miles, meaning 95% of all engines should reach 200,000 miles of service, based on durability and wear.

What problems do LB7 Duramax have?

Overheating issues are more common on LB7 and LLY Duramax trucks than future generations. This is most likely because they have a smaller radiator and fan than 2006 or newer models. Overheating issues typically occur because of a faulty water pump, or a damaged fan clutch.

Do LB7 Duramax have high idle?

The Duramax will accelerate poorly above ~ 2200 RPM. 2) The 2001 Duramax equipped trucks have three high idle speeds: STANDBY ~850 RPM, SET ~1250 RPM, and RESUME ~1700 RPM. The 2002 and 2003 trucks have only the SET and RESUME speeds available.

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.

What year Duramax is most reliable?

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.

What kind of exhaust pipe does a Duramax LB7 use?

The Banks Power 48631 Monster Exhaust Head Pipe for your 01-04 GM 6.6L Duramax LB7 is built from 4″ mandrel bent stainless steel for maximum flow and longevity. Features: 4″ Stainless SteelOutflows Stock Front PipeMandrel Bent For Maximum Flow Replace the damaged factory part on your vehicle with this Dorman product.

What was the first year of Duramax exhaust?

As previously stated, the first model year of Duramax was 2001 with the LB7 engine code. This model featured a 3.5″ exhaust system featuring a catalytic converter and a muffler. This basic system was utilized all the way through 2007 model years ending with the LBZ engine code.

Can a Duramax exhaust system be turbo back?

When the time does come to upgrade the exhaust, you’ll see numerous options and many of them are labeled as “turbo back” when in fact there are no exhaust systems legitimately turbo back for any model year of Duramax.

What kind of downpipe does a GM Duramax use?

The PPE 117000424 3″ Stainless Steel Downpipe for your 2001-2004 GM 6.6L Duramax allows you to removed your crushed oval stock downpipe and replace it with a smooth round, long lasting 304 stainless steel down pipe. Spiral wrapped with titanium woven thread for superior heat that’s held in place with stainless steel clamps.