Common questions

When to replace the EGR valve in a diesel engine?

When to replace the EGR valve in a diesel engine?

Learning when to have it maintained or replaced is therefore important. In modern diesel engines, the EGR gas is cooled with a heat exchanger to allow the introduction of a greater mass of recirculated gas.

What can I use to clean an EGR valve?

This is a home experiment and an unbiased use of JLM Diesel Air Intake & EGR Cleaner. Similar products are available. This product is designed to dissolve carbon deposits, gum and varnish build up. It should restore air flow to the engine thus improving power and acceleration while reducing exhaust smoke.

Why is the EGR valve on a Saab important?

As a Saab owner, it’s important that you keep the EGR valve in good condition. Since it has a direct impact on how the engine works, any problem with the EGR will manifest either as increased fuel consumption or reduced performance , and you may see a Check Engine light followed by a readable code in your Saab’s OBD-II or newer computer.

How to disconnect the EGR valve on a 2010 Hilux D4D?

The EGR valve creates How do you disconnect the EGR valve on a 2010 Hilux D4D without… Cranks, will not start. Had air in fuel system but have used Cranks, will not start. Had air in fuel system but have used plunger pump on filter to bleed it all out. Recently had new SCV and new fuel pump … read more Vocational, Technical or Tra…

What is the best way to clean an EGR valve?

Soak your EGR valve in a bowl of carb cleaner. Avoid submerging the electrical portion if it has one. You should soak it overnight if possible. After soaking the valve in the cleaner, you should clean the openings, passages and surfaces by using a small brush.

How difficult is it to replace the EGR valve?

How hard is it to change an EGR valve? In most models, replacing an exhaust gas recirculation (EGR) valve is not difficult. You can do it in your garage in about an hour or two, depending on your particular system, using some common tools and a good solvent like carburetor cleaner.

How often does an EGR valve need replacing?

EGR valves rarely require maintenance or repair and they also rarely need to be replaced. An EGR valve can sometimes become clogged, however, with carbon deposits, resulting in a valve that sticks or does not close completely.

How do you replace an EGR valve?

Replacing The EGR Purchase the correct EGR valve for the make and model of your vehicle. Let your engine cool. Disconnect the battery. Locate the EGR. Disconnect the vacuum line. Disconnect the electrical cable. Use a wrench to remove the bolts on the EGR valve’s mount. Take out the old EGR valve. Clean the valve base and passages.

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Ruth Doyle