How many miles can you get on a LB7?

As we said earlier, the LB7 powered HD Sierras and Silverado’s are very reliable, and many you’ll find on the market have well over 300,000 miles on the original engine.

Is the Chevy LB7 Duramax a reliable truck?

At first when the trucks were new, the LB7 was found to be very reliable, but as the years wore on and miles accumulated, there were a few common issues that popped up. It’s a fact of life any 18-year-old trucks will have problems that need to be addressed here and there, but rest assured its nothing that can’t be solved when you own a Chevy.

What to do about a Duramax 6.6 LB7 engine?

If you are having a problem with your 2001-2004 Duramax 6.6 LB7 diesel engine, please feel free to give us a call. We carry a full line of repair and performance parts for these engines that we install in our shop on a regular basis. Odds are we have run across your problem before and would be glad to help. Call us at 1-877-367-9351.

What kind of mileage does a Duramax truck get?

The truck is raced, pulled and plows snow, and is a good daily driver. It’s a showcase of what good parts and a properly built truck can do.” And by the way, the truck runs consistent low 10-second passes at more than 130 mph and still gets 21 mpg on the freeway.

How many CFM does a Duramax diesel engine have?

In stock form, the Duramax’s aluminum cylinder heads flow a little more than 180 cfm (at .500 valve lift) on the intake side. When you compare that to a 6.7L Cummins’ cast-iron head and a 6.4L Power Stroke’s cast-iron heads for example, which flow approximately 160 cfm, the Duramax units are already a step ahead of the game.

When did the GMC Duramax LB7 come out?

Duramax LB7 Specs & Info. The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.

What is the first year of the Duramax?

The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.

What kind of problems does a Duramax engine have?

The 5 Most Common LB7 Duramax Engine Problems 1 Fuel Injector Failure 2 Water Pump Failure 3 Fuel Filter Housing O-ring Leaks 4 Blown Head Gasket 5 Overheating (fan clutch problems, radiator gunk)

Are there any problems with the LB7 engine?

Where the LB7 loses reliability is under additional power. The crankshaft and rods are problem areas under serious power. Additionally, fueling and cooling will become a common failure point as well along with the Allison 1000 transmission. Overall, the LB7 is a strong contender for older diesel engines.