What to do if your Duramax harness goes bad?
What to do if your Duramax harness goes bad?
The factory harness tends to go bad on the #7 and #2 injectors. Depending on how bad the problem is, you may be able to fix the wiring rather than having to replace the entire injector harness. If you can’t identify the problem however, or if it can’t be salvaged, you’re going to have to replace the entire thing.
What causes a Duramax diesel truck to overheat?
Its restrictions cause excess heat and force the turbocharger to work harder than necessary. The LLY experiences more overheating compared to other generations of the Duramax diesel because of its inadequate cooling system. They have the smallest radiators and fans found on any Duramax diesel truck.
What causes LLY Duramax injector harness to Chaf?
As LLY Duramax trucks on the road are only getting older, more and more are being found to have injector harness chafing. Vibrations, heat, and just general wear and tear cause the injector harness to rub against other vehicle components until the wiring gets exposed.
How can I Fix my Duramax Turbo inlet manifold?
It also provides less than optimal performance and fuel economy. Thankfully, fixing the turbo inlet manifold is as simple as replacing it with a less restrictive aftermarket part. This will not only help your truck run cooler, but it will also free up some extra horsepower and torque! Turbo spool-up times are reduced too.
Where is the throttle position sensor on a Duramax engine?
Throttle Position Sensor (TPS) On the LMM and newer Duramax engines, there is a throttle valve assembly that is used to regulate engine airflow during regeneration. The throttle valve assembly is bolted to the front of the inlet tube below the intake air heater.
What kind of fuel injection does a Duramax engine use?
The Bosch common rail direct fuel injection system was new to the North American market at the time and provided speed and precision that had not previously been available. These factors, among others, allowed the Duramax engine to set the high-water mark for diesel engine power output.
Where is the fuel junction block on a Duramax?
On the original LB7 Duramax it is located in the fuel junction block. On the LLY Duramax, it is located in the middle of the right-hand fuel rail.
Where is the fuel rail pressure sensor on a Duramax?
On the original LB7 Duramax it is located in the fuel junction block. On the LLY Duramax, it is located in the middle of the right-hand fuel rail. Since 2006 the fuel rail pressure sensor has been located at the rear of the right-hand fuel rail.
