The Duramax has a long history. We recommend avoiding any GM vehicle equipped with the 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, and 2010 Duramax engines. In short, the newer model years show improved performance.
The new Duramax 3.0L Turbo-Diesel is an amazing engine. It’s smaller and lighter than the previous Duramax, yet it makes more power and torque. It’s also more efficient, with better fuel economy. The new Duramax is a great engine for trucks and SUVs.
Is the 3.0 Duramax diesel reliable?
Given the fact that there are no active recalls on the 3.0 Duramax (see below), it’s safe to assume the engine is generally reliable. The main issue seems to be long crank times and no starts. However, it’s not an overly common issue, and it does seem to be repairable.
Truck owners are reporting multiple culprits that have fixed the long crank issues on their 3.0-liter Duramax Diesel engines. These include, but aren’t limited to, a faulty wiring harness, updated ECU, camshaft position exciter wheel, fuse boxes needing to be torqued, faulty actuators and faulty fuel pumps.
What years of Duramax to avoid? – Related Questions
Which is better the 5.3 or the 3.0 Duramax?
3.0L Duramax Diesel vs.
While the 3.0L Duramax diesel comes out on top in terms of efficiency and torque output, the 5.3L V8 shines when it comes to towing heavy, bulky items with ease. The 5.3L V8 is capable of towing up to 11,500 pounds, while the diesel option maxes out at 9,500 pounds.
Did GM fix the 3.0 Duramax?
GM fixed the supplier issue as well as changed the engine crank to allow the teeth to better engage in both the LM2 and LZ0 engines. Thus, Barta said there are no concerns of this happening on the LZ0 Duramax Diesel engine, and the current diesel is also fixed.
How long will the 3.0 Duramax engine last?
GM is confident enough about the new LZ0 Duramax engine’s reliability that it has extended its recommended inspection to 200,000 miles. The significance of this is huge. That’s because, in the previous generation, you had to drop the transmission to replace the variable valve oil pump belt at 100,000 miles.
Why did GM stop production of the 3.0 Duramax?
Back in July, it was semiconductors—more so the worldwide shortage of those invaluable microchips—that prompted a halt in production of the lion’s share of GM’s full-size rigs. Now, once again, a lack of parts is the cause for the latest stoppage, which company officials maintain is only “temporary.”
If your vehicle’s manufacturer recommends a mileage interval greater than 7500 miles, you will need to change your vehicle’s motor oil using DuraMAX synthetic motor oil at least one time per year and as often as recommended by the vehicle manufacturer (or before every 10,000 miles, whichever occurs first).
How much does it cost to replace a oil pump belt on a 3.0 Duramax?
That job will probably cost upwards of $1,200 according to many estimates. We have not had a 3.0L Duramax here in the shop, but our shop repair guides allow 7.5 hours.
What years did the Duramax have fuel pump problems?
GM intentionally put a defectively designed CP4 fuel pump in every one of its 2011-2016 Duramax diesel trucks—and, as the court noted today, from mile one it will begin to fail. There is no fix.
Why put a lift pump on a Duramax?
What happens if you don’t change the fuel filter on a Duramax?
A blocked fuel filter prevents fuel from traveling through the fuel lines to the engine, starving your engine of fuel. If your engine is not getting fuel, it simply will not run.
What are the five signs that you need a new fuel filter?
Here are five of the bad fuel filter symptoms to watch for:
You have a hard time starting car. If the problem is the fuel filter, and it isn’t changed soon, you may find that your vehicle won’t start at all.
What are the symptoms of a blocked diesel fuel filter?
In the case of a clogged diesel fuel filter, the engine will likely start to idle rough and perhaps sound like it is going to stall. This is especially true when cold. Once heated up, the engine may sound like it is choking because there isn’t enough fuel getting into the engine’s fuel injectors.
Does it hurt a Duramax to idle?
The newer Duramax will go into a regen cycle to clean out the particulate filter(DPF). It doesn’t hurt to idle for long periods, but it will use more fuel when it goes into the cycle.
How long should you let Duramax warm up before driving?
As a general rule of thumb, if it is below zero degrees Fahrenheit, you should allow your engine up to seven minutes to warm up. If the temperature is between zero and fifty degrees, the warm-up period should be three to five minutes. Over fifty degrees will only require one or two minutes to warm up.