![]() After it cools down and the engine is turned off and back on, everything will be back to normal. The wrench light will come on and the power will be cut. This is really hard for a tech to diagnose because it usually only happens when the truck has been towing for a couple of hours when the problem starts. If the delta between the coolant temperature and the oil temperature gets too high a wrench light will appear on the dash and power will be derated. This sludge material plugs heater cores and commonly the oil cooler. The silicates drop out of the coolant causing a sludge that makes a mess of the coolant system. ![]() The egr system breaks down the coolant due to the extreme temperatures the exhaust gasses place on the coolers. The 6.4 shares this issue with the 6.0 Powerstroke equipped trucks. It could be assumed that fuel economy and mileage would go up, but as we mentioned earlier, it is illegal to remove emission devices from legally registered vehicles in the US.Īnother issue that commonly gets misdiagnosed is the oil cooler getting blocked off by debris in the coolant system. Not only will they allow for the complete removal of the egr /dpf and all related sensors, but they will also add up to 300 more horsepower. A programmer must be installed at the same time that removes the dpf and egr programming from the vehicles ecm. PLUGGED IN NEW 7.3 INJECTOR DRIVER MODULE INSTALLIf you install either product by itself, the truck will throw check engine codes and may enter a no start fault. There are DPF/CAT delete pipes that bolt directly in place of the convertor and filter as well as complete exhaust systems from MBRP, Diamond Eye, AFE, and Flo Pro. The EGR Delete with intake elbow will let you remove both egr cooler and the egr valve. However, if you were in a country with no emissions, use your vehicle strictly for off road use, or are using your 6.4 Powerstroke for a competition use like sled pulling or drag racing only, there are products available to remove both systems. Of course we would never recommend tampering with any federal emission devices on a vehicle that is registered for highway use. Some trucks will also smoke out the tail pipe during this process as well.Ī common question is if the egr and dpf system can be removed to make the truck reliable like the 6.0’s. You will probably notice a loss in power and fuel economy when this happens. Once the computer feels the dpf is clean enough, it ends the regen. The extreme exhaust gas temperatures and the raw fuel in the dpf will cause all the soot to burn out and cleans the filter. Then the fuel injectors fire a mist of fuel when the piston is on the exhaust stroke to introduce fuel into the exhaust system. During a regen, the egr valve is opened to let hot exhaust air into the engine to raise exhaust gas temperatures. You may have noticed the cleaning exhaust filter message displayed on your dash gauge area when this happens. When the sensors determine that the DPF has become a certain amount clogged, it requires the system to do a regen. The DPF filter itself collects soot from the engine’s exhaust. ![]() There is also a pressure sensor mounted on the dpf to measure exhaust back pressure there. ![]() They read the exhaust gas temperature before, in, and after the DPF filter. Here is how: If you look, there are several sensors located along the exhaust system. The EGR and DPF systems work together to help the engine meet emission standards. ![]()
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