Where is the EGR valve on a Duramax diesel?

Where is the EGR valve on a Duramax diesel?

The EGR valve is very easy to find. Pull the doghouse off and follow the passenger side up-pipe up from the exhaust manifold. You will see a pipe branch off that goes to the EGR cooler. On the other side of the cooler is the EGR valve.

What is an EGR valve on a Duramax diesel?

The exhaust gas recirculation valve (EGR valve) is an integral part of your Chevrolet Duramax. Over time, carbon deposits and other pollutants can build up in the EGR valve, diminishing its performance and sacrificing both its power and its efficiency.

What causes EGR problems on LML Duramax?

Rapid heating and cooling a small area of air creates condensation. Pass exhaust with un-burnt diesel fuel through that condensation and you get the nastiest sludge you have ever seen in a truck part. This was the primary cause of failure with the older models EGR systems.

What is the benefit of EGR delete on Duramax?

An EGR delete consists of using a delete kit to remove the system. The benefits include an improvement in engine performance, fuel economy and not having to worry about emergency maintenance on the EGR (or even the engine itself).

What causes EGR cooler failure?

An EGR cooler primarily fails by cracking internally. There are no moving parts in an EGR Cooler. An EGR cooler is simply a heat exchanger which exchanges heat from the exhaust air to the engine coolant.

What happens if EGR cooler fails?

When EGR cooler starts to fail, it will drain a lot of coolant out of the EGR cooler into your exhaust system. When that happens, the exhaust goes thru and interacts with that coolant and turns it into steam then come out in a form of white smoke out of the back of your exhaust system.

What happens when EGR cooler fails?

The EGR cooler can fail in 2 main ways -it can get blocked or it can develop a leak. Blockages will restrict the exhaust flow and also raise the intake temperature because the EGR cooler works like a radiator in reverse with heat from the exhaust gas flow being transferred to the engine coolant.

Can you drive with a bad EGR cooler?

The coolant entering the cylinders will cause excessive pressure on the head bolts causing a head gasket failure or possibly worse damage. The coolant can also seep into the oil past the rings and cause contaminated oil to be run through your injection system. Long story short I wouldn’t risk it.

How much does it cost to replace EGR cooler?

To have it replaced, you will pay anywhere from $650 to nearly $1600. The average price is closer to $1,100, but what you pay will depend on the car you have and how much the parts and labor cost for that car. On average, the labor will run you about $440, but it could be a few hundred dollars more.

Can a 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 blocked EGR cause overheating?

Can a bad EGR valve cause overheating. If you have been asking yourself this question, then the answer is YES. In fact, it is one of the first symptoms of a faulty EGR. Because the EGR will restrict the flow of gas through the cooler, the engine will experience a large amount of heat which leads to overheating.

How do I clean my EGR cooler without removing it?

Here is how to clean an EGR valve without removing it:

1. Gather the needed cleaning supplies.
2. Locate the EGR Valve.
3. Gain access to the EGR Valve.
4. Start the vehicle and rev it to 2000 RPMs.
5. Spray half of the cleaning solution (250ml)
6. Reinstall the EGR valve cover.
7. Scan the vehicle for error codes.