When did the Cummins ISX engine start having problems?
In 2008, Cummins began noticing the SCR system experienced failing revolving parts, interfering with the engine’s horsepower. Clogged inlets came about in 2010 when recirculation was occurring, also affecting HP.
What kind of SCR does Cummins ISX cummings use?
The ventilated exhaust lowers the combustion chamber temperature. The ISX Cummings started featuring the selective catalytic reduction (SCR) system in 2006. It injects urea, which is an active element in diesel exhaust fluid (DEF), into the exhaust.
Is there a third injection event in 5.9 Cummins?
In addition, the later 5.9 Cummins also featured a third, post-injection fuel event after the main spray, and the main purpose is to reduce harmful emissions. The third injection event is said to have a slight negative impact on fuel mileage, however with aftermarket tuning, the loss in mileage can be restored.
Are there any issues with the Cummins ISL 9L?
The CUMMINS isl is a very good engine, at our shop we have had very little major engine issues before the 400,000 mile range. When you get to 400,000-500,000 it will definitely need an over haul. But to more answer your question the issues before that mileage has been water pumps, air compressors, and on a rare occasion an injector or 2.
Is the ISL EGR cooler still available at Cummins?
Cummins no longer offers the ISL EGR cooler. In its place they offer the ISX cooler and an adapter kit. Plan on $4.5K if unit has an EGR cooler and it has not been replaced. Full time and loving it! there has been much discussion here over the years about recommended maintenance schedules and interpretation over what is best practice….
Where to buy hose clamps for Cummins ISL 400hp engines?
In a pinch, you can buy larger hose clamps from a hardware store or other source and gang them together to get the make shift clamp around boost side of the turbo plumbing failure. Even helped a fellow heavy hauler do that one night when he did not want to bothered by a set of Kansas scales on I-70.
What happens when an ISL 9L engine goes into Regen?
When the engine goes into regen, the exhaust temp will exceed 1000 degrees Fahrenheit (don’t know the cel. equivalent, lol). With this temp it will break down the oil lubricity causing more friction on the internal components, which will cause more heat, more heat causes more wear, more wear causes engine rebuild soon than needed.
