Where is the EGR cooler located?
For cleaning, you’ll find the EGR cooler between the turbo and the EGR valve. Soot and debris can reduce airflow or clog your EGR cooler. The inside of the cooler might also be dirty, especially if your cooling system is oil-based. A clogged EGR cooler can cause the engine to run at higher temperatures, potentially leading to overheating. Over time, this can result in engine damage and a shortened engine lifespan. Ignoring an EGR issue can also cause excessive soot bulidup in the engine and cause a loss of performance.EGR Cooler Issues Coolant leaks, blockages from carbon deposits, or failures of the EGR cooler can all hamper its ability to properly regulate exhaust temperatures. This leads to combustion efficiency issues, increased emissions, and potentially engine overheating.The EGR system can cause carbon buildup in the intake manifold, which reduces airflow to the engine. Therefore, deleting this system reduces the buildup and improves the airflow to the engine, resulting in better performance. This increases the engine’s horsepower, fuel efficiency, and throttle response.In a well-maintained truck, an original EGR cooler can last for several hundred thousand miles. However, factors like cooling system health, engine operating conditions, and the quality of the coolant used can all impact its longevity. They are considered a wear item that may eventually need replacement.
Can you delete an EGR cooler?
Typically, you can blame the problem on the exhaust gas recirculation (EGR) cooler, which is meant to reduce carbon emissions. However, if you had an EGR cooler delete kit on hand, you could dismantle the EGR and enable your engine to run cooler, allowing you to get back on the road. Symptoms of EGR Cooler Failure Engine overheating or higher operating temperatures caused by exhaust gases entering the cooling system. Loud engine noise if exhaust tubes break, making your diesel sound unusually loud. Coolant stains and a chemical smell around the EGR cooler.When an EGR cooler starts to fail, it transfers coolant out of the EGR cooler into your exhaust system. When this happens, the exhaust interacts with that coolant and turns it into steam.Apply air pressure (240 kPa [35 psi]) to the EGR cooler. Maintain the pressure for 15 minutes. A steady stream of bubbles coming from the gas inlet or outlet openings indicates that the EGR cooler is leaking internally. If this is the case, replace the cooler.Apply vacuum directly to the EGR valve using either a hand vacuum pump or scan tool depending on the type of EGR valve. If there is no change in idle quality, then either the EGR valve is faulty or the passages are completely restricted.
How to check an EGR cooler?
If you remove the valve, which is located near the top of the engine next to the oil filter, it should be full of a dry black charcoal carbon (soot) which is from the exhaust system. If you have a failing EGR cooler, the dry carbon would be replaced by a black slime – like substance. After combustion, the cylinder’s exhaust valve opens and the waste gas flows through the exhaust manifold into the EGR cooler. In the cooler, the antifreeze coolant lowers the temperature of the exhaust before it cycles back into the engine.However, exhaust gas is incredibly hot – far too hot to be reintroduced directly. This is where the EGR cooler comes in. It’s essentially a heat exchanger that uses engine coolant to cool the exhaust gases before they are sent back into the intake manifold.The EGR cooler is a water to air heat exchanger that sits between the turbo and the EGR valve. The body has a hollow tube or series of tubes for the hot exhaust gas to pass through. Surrounding these tubes, are several coolant passages.Can a bad EGR cooler cause loss of power? Yes. It disrupts exhaust recirculation, unbalancing the air-fuel mix and causing incomplete combustion.
Does an EGR cooler use coolant?
One can think of an EGR cooler as sort of an engine radiator that works in reverse. An engine radiator uses cold outside air to cool down hot engine coolant. An EGR cooler is just the reverse of that – an EGR cooler uses cold engine coolant to cool down hot exhaust gasses. The best way to clean an EGR cooler is using ultrasonic cleaning technology offered by some radiator and other specialty repair shops around the country. It’s not that expensive, costing around $125, but not a service you’ll find in every town.Generally, the replacement cost of an EGR cooler ranges from $1,200 to over $4,500, depending mainly on regional labor costs and the specific part chosen. Also, some hidden factors need to be extremely noticed, like the DPF cost. Browse this full guide to know more.One can think of an EGR cooler as sort of an engine radiator that works in reverse. An engine radiator uses cold outside air to cool down hot engine coolant. An EGR cooler is just the reverse of that – an EGR cooler uses cold engine coolant to cool down hot exhaust gasses.
What happens if an EGR cooler is blocked?
When the EGR cooler is blocked and the system operates, pressure in the exhaust increases and the system thinks that the DPF regeneration is not efficient and alerts the driver with a fault code. Audi in for DPF Troubles – Fault Code P2002 🚗💨 This Audi came to us with a DPF efficiency issue (P2002). After diagnosis, we found the EGR cooler was substantially blocked.Most often, trouble code P2002 is a result of a clogged DPF. You’ll simply need to burn off some of the soot to clear the filter and restore its functionality. Of course, there are many other reasons that this error code could be triggered. A damaged sensor, air leak, or damaged DPF could all be causes.The usual cause of DPF issues is not running the car for long enough at high enough revs. This issue can be avoided by driving for about 30 minutes at revs exceeding 2,500rpm.
Can an EGR cooler cause turbo failure?
Common problems include leakage in the EGR cooler, which can lead to coolant contaminating the exhaust system, and turbocharger failures, often due to oil contamination or mechanical wear. Such issues don’t just stop at reducing engine performance; they extend their impact to the aftertreatment system. A faulty EGR valve can affect engine performance, causing reduced power, slower acceleration, poor fuel economy, and higher emissions. This often happens when the valve gets stuck open or closed due to a build-up of carbon, soot, or dirt.The EGR valve controls the flow of exhaust gases back into the engine to reduce NOx emissions. The DPF traps particulate matter (soot) from exhaust gases to reduce harmful emissions.EGR bypassing is a form of remapping (programming the vehicles onboard computer) for overcoming the problems associated to using an EGR by effectively disabling it’s functionality. When this is performed the vehicle will run without any EGR faults and it’ll reduce the build-up of carbon deposits.
Can you clean an EGR cooler without removing it?
Cleaning the EGR (Exhaust Gas Recirculation) valve without disassembling it is possible using specific additives designed for this purpose. This type of cleaning is considered preventive or light maintenance, and is not always sufficient if the valve is badly clogged. Wynns Diesel EGR Valve Cleaner 150ml. The Wynn’s Diesel EGR Valve Cleaner is designed to clean out your EGR valve. This cleaner eliminates carbon and tar-like deposits that restrict air flow and cause the EGR valve to stick.Valvoline EGR Cleaner is an effective cleaning spray used to dissolve deposits in the exhaust gas recirculation valve, air intake system, and inlet valves. It helps maximise engine efficiency, allowing it to run smoother and more optimally.