Where is the EGR valve on ISX engine?
It depends on what year ISX you have, up to ’06 engine model (found in some ’07 model trucks too) it is buried behind and slightly in front of the turbo. ’07 and later engines it is on the driver’s side. Trucker217 Thanks this. EPA 2007 engines with CM871 really differ.
When to tune up a Cummins ISX engine?
These are the steps (An EGR Tune-up) to perform every 200-250k miles on the CM871 ISX engine to prevent or stop some well known symptoms that will usually include one or more, but not all of the following symptoms… Surging or power increases above 1400-1500 RPM.
When do I need to replace the EGR valve?
The code is EGR Valve Position Circuit – Voltage below normal, or shorted to low source crosses to a cummins code 2272. The valve does need to be replaced if this code is triggered due to a failed position sensor.
Why do Truckers hate Cummins ISX CM871 engine?
Truck owners who do this, after spending many thousands on what are typically ‘ghost problems’, will usually hate the engine and its egr/dpf systems, blaming their lemon truck, rather than taking the extra step to educate themselves on how to keep that truck out of the shop.
Why does my check engine light come on when my EGR valve is stuck?
Whether the EGR valve is clogged, stuck open, or stuck closed, you’re going to get a check engine light. While the check engine light will usually point you straight to the EGR valve, it is possible that it might come on due to a symptom instead of a cause.
What causes black smoke from the EGR valve?
2. Black Smoke from Exhaust. If the EGR valve stays open at all times and the exhaust fumes are being fed to the engine constantly, the engine gets deprived of oxygen. With too much fuel burning and less oxygen, a black smoke gets produced and escapes from the exhaust pipe especially when the car is idle.
Are there any turbo problems with a Cummins ISX CM871?
If it is buried in soot, and it will be, at 250k+ miles, it is, at the very least, costing you fuel mileage by now, or at its worst, causing turbo problems, power loss, hesitation in the acelerator, and/or excess soot problems. You will get turbo actuator alarms long before you get alarms for this sensor being cloged.
When do you need to replace a Cummins EGR valve?
If you took it apart, you ruined it since the unit does have to be timed. The code is EGR Valve Position Circuit – Voltage below normal, or shorted to low source crosses to a cummins code 2272. The valve does need to be replaced if this code is triggered due to a failed position sensor. If that is the only code active, replace the valve.
How to remove soot from a Cummins ISX?
<>Determine/Remove the soot buildup in the EGR system: Remove the IMAP sensor from the intake manifold. Very easy to do, takes less than a minute.
When did Cummins start having problems with EGR?
For example, engines engineered before 2002 will experience more problems with EGR compared to modern types. 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.
When did the Cummins ISX diesel engine come out?
Since its launch, the ISX has been the core of Cummins’ diesel engine fleet. Not only has it advanced with quicker processing, but it has also increased fuel efficiency since its debut. In 2002, the ISX became one of the first diesel engines to incorporate an exhaust gas recirculation (EGR) cooler system.