Table of Contents
- 1 What would cause a Duramax diesel to lose power?
- 2 What are common Duramax problems?
- 3 Does ECM control fuel on a Duramax?
- 4 What year Duramax has head gasket problems?
- 5 What year Duramax has injector problems?
- 6 How does a vane position sensor work?
- 7 What causes a Duramax Diesel to lose power?
- 8 What to do if your Duramax has a problem?
- 9 What causes a Chevy 2500HD to lose power under load?
What would cause a Duramax diesel to lose power?
Duramax losing power in heat 8 Answers strong engine. heat related electric problem. It needs to be hauling a load, at least an hour into the drive and the air temps above 88 degrees.
What are common Duramax problems?
The Duramax diesel is susceptible to fuel starvation and getting air in the fuel lines. The 2001 to 2004 LB7 fuel filter housings seem to be the most prone to problems. Water Pump Failure. Water pump failures for Duramax engine are somewhat common.
What causes Duramax limp mode?
Duramax Allison Transmission Limp Mode In some cases such as a heavy load, towing, down shifting to pass, etc, and is especially common in performance tuned trucks can cause enough transmission slippage to trigger limp mode. Repair: Diagnose cause for going into Duramax transmission limp mode.
Does ECM control fuel on a Duramax?
The LB7 and the LLY Duramax engines used an intermediary module called the Fuel Injection Control Module or FICM to actuate the fuel injectors. Since 2006, the ECM has operated each fuel injector directly. In all cases, a low-side driver was used either in the FICM or the ECM to control the fuel injectors.
What year Duramax has head gasket problems?
In the GM world, the 2004.5-2005 LLY engine seems to be the worst for having gasket failures. These years seem to have temperature issues and I believe it’s because of this, that we see these trucks more than any other Duramax for head gasket issues.
What year of Duramax is best?
For example, the pre-emissions Duramax engines made between 2001 and 2007 are highly sought-after for superior reliability. On the other hand, the more modern engines add more horsepower, torque, and upgrade capability with Duramax performance parts.
What year Duramax has injector problems?
What year Duramax has injector problems? The LB7 Duramax built from 2001 – 2004.5 is known for injector failure. The good news is the replacement injectors you purchase from us incorporate several updates to help prevent repeat failures.
How does a vane position sensor work?
The vane position sensor relays a signal to the ECM which then sends a signal to the VGT actuator telling it what position the vanes should be in. When this sensor fails, the ECM provides incorrect signals to the solenoid, which creates turbo issues and therefore performance issues.
What is considered high mileage for a Duramax?
According to Prosource Diesel, anything over 350,000-miles is considered high mileage for a used diesel pickup with a Cummins or Duramax engine under its hood. Anything over 350,000-miles is also regarded as high mileage for a Powerstroke diesel engine.
What causes a Duramax Diesel to lose power?
Vocational, Technical or Tra… Duramax Chev. P.U. (2003) loses fuel prime and motor stops running at low RPM or at an idle. No visible leak around filter area. Fuel pressure … read more Vocational, Technical or Tra… Hi, I just purchased a 2004 Kodiak C4500 crewcab with the Duramax diesel engine mated to an Allison with 4:44 gear ratio.
What to do if your Duramax has a problem?
This is by no means a comprehensive list of all the problems you may run into, so if you are stumped by your Duramax or just need a little more information to help make the best decision on which parts will help get you back on the road, give us a call at Diesel Power Products, and our team of experts will be able to get you sorted out in no time.
What causes a Duramax injection pump to fail?
As a result (allegedly), the lack of lubrication in the fuel can cause a premature failure of the injection pump, to a point where it won’t allow the LML Duramax to run. You can be driving down the road and everything seems normal, and when the pump fails, the truck just shuts off.
What causes a Chevy 2500HD to lose power under load?
Probably P0087. Check the fuel hoses at the side of the trans– they can get kinked, weak and collapse. I’ve just experienced a very similar situation with my 2005 2500HD. After driving about 2 hours, over varying terrain, I had to stop at a light (not the first on the trip).