What happens when EGR cooler fails?

But what happens if an EGR cooler fails? EGR cooler failure can compromise the integrity of your vehicle, leading to severe engine damage and possible impairment to other components. It can often go unnoticed for some time too as the symptoms are not always obvious.

What does an EGR cooler do?

The EGR cooler keeps the temperature of exhaust gases in the EGR system low. These gases then get recirculated into the engine to decrease the temperatures of the cylinders. The gas circulated in the system can get extremely hot, which is what makes the EGR coolers so important.

How do you tell if EGR cooler is clogged?

Symptoms of a Bad EGR Cooler

1. White smoke. When EGR cooler starts to fail, it will drain a lot of coolant out of the EGR cooler into your exhaust system.
2. Missing coolant from your D gas/overflow bottle.
3. Gooey EGR valve.

How often should you replace the EGR cooler?

Experts recommend replacing the EGR cooler of a vehicle every 80,000 miles, depending on the make and model of the vehicle. However, EGR coolers are one of the most expensive parts of an engine and replacing them may not be a viable option for many individuals.

How much does it cost to replace an EGR cooler?

For a replacement EGR cooler you could be looking at between $270 and $3700, which will vary from case to case. The higher end pricing usually applies to modified or high performance engines, so for a passenger car you are likely looking at the lower end of the spectrum.

How long does it take to replace EGR cooler?

Had mine done in about 2 1/2 hours.

Can EGR cooler cause turbo failure?

But, over time, this part can fail. The results of this failure can damage a number of different EGR system components, including the VGT turbo. Most failures happen inside the EGR cooler, so it’s easy to miss until symptoms start to show up elsewhere. Don’t let a failing EGR cooler keep your diesel engine down!

How much does it cost to replace EGR cooler?

Can EGR cooler cause overheating?

Engine overheating: if coolant flow is restricted, the EGR cooler is unable to cool the exhaust gases. This not only allows NOx emissions to continue, it also causes overheating which can cause serious damage.

Can EGR leak coolant?

If the EGR cooling system develops a leak, water can escape into the recirculating exhaust gas, and pass through the engine, and disappear out the exhaust pipe, with virtually no symptoms, except of course for gradual coolant loss, the cause of which can be hard to diagnose. The loss is easy to identify.

Where is the EGR cooler located?

The EGR cooler is located on top of the passenger side valve cover. Besides the EGR pipes, only the air filter lid and intake tube need to be removed.

How do you unclog a EGR cooler?

You’ll want to mix 4 parts hot tap water to 1 part MOPAR® EGR System Cleaner. With the outlet facing up, fill it with the System Cleaner and hot tap water until it’s full and let it soak for an hour. When the hour is up, remove the EGR plug and let the cleaning mixture drain.

Can you clean EGR cooler without removing?

One of them is the EGR valve cleaning product. I personally have used this product for cleaning my EGR valve without removing it. The canister is 500ml and you can use it to clean your EGR valve twice. The Liqui Moly EGR valve cleaning product will not damage any seals on the engine.