When did Duramax get EGR?
When did Duramax get EGR?
2004.5
The first generation Duramax to be equipped with an EGR system is the LLY, released in 2004.5. Admittedly those early models (2004.4 – 2010) had quite a few warranty claims for EGR failures.
Why do I need to replace the EGR valve on my Duramax?
This increases fuel economy by ensuring that all of the diesel fuel has been consumed. It also reduces emissions because it prevents the fuel from being released into the atmosphere. Over time, the EGR valve will clog and will need to be replaced. Disconnect the cable on the negative terminal of the battery.
Can a EGR delete be used on an EGR blocker?
Essentially an EGR delete removes the EGR valve/motor assembly along with the EGR cooler etc. It requires serious plumbing changes to the exhaust and intake and in my opinion is only advisable for the hard core racer.
What kind of valve system does a Duramax have?
Duramax diesel engines are installed on many of General Motors light and medium capacity pickup trucks. The engines are all equipped with an EGR valve system, which operates by recycling a portion of the exhaust through the engine.
How do you unplug an EGR valve?
Unplug the wiring harness that is connected to the EGR system by first pressing in on the release tab to unlock it. Unplug the metal exhaust tubing by loosening the clasp that holds it into place. Remove the EGR valve from the engine by removing the Torx bolts that secure it.
How does an EGR blocker work on a Duramax engine?
Installation involves cutting and soldering of your engine’s wiring harness along with insertion of the blocker plate between the EGR cooler and the vehicle exhaust system. The EGR blockers have proven over time to be quite effective, but we have seen plenty of the EGR motors fail requiring replacement or upgrade to programming to fix.
What do you need to know about EGR delete?
EGR delete by my definition is complete removal of system components which is a highly invasive and unnecessary procedure. It also requires ECM programming to deal with the DTC’s associated with removal of the EGR motor. Essentially an EGR delete removes the EGR valve/motor assembly along with the EGR cooler etc.
What to do if your Duramax engine is having problems?
Blocking or removing it will remove the recirculation of exhaust gases which will prevent the gunk and particulate buildup in the EGR valve and intake manifold which is what primarily causes EGR problems. You will get CEL’s for doing either of these but they can be coded out with a tuner.
How do you put a blocker on an EGR cooler?
The Finger Stick (named after its creator Jon aka “Fingers”) and a stainless steel blocker plate to prevent flow of exhaust through the EGR cooler. Installation involves cutting and soldering of your engine’s wiring harness along with insertion of the blocker plate between the EGR cooler and the vehicle exhaust system.
