What to do if your Volvo has an EGR problem?

What to do if your Volvo has an EGR problem?

1) If a car has the ‘Check Engine’ light but still drives normally, leave it for now until the permanent fix is available. 2) If a car does go into limp mode with the EGR problem, fix it immediately with the currently-available stock of updated EGR valves and coolers – although this is NOT regarded as the definitive, permanent fix.

Is there a recall on the EGR valve?

Thanks for that — yes, Volvo HQ is distributing updated EGR valves and EGR coolers to dealers, so these can be fitted if a customer’s car gets the ‘check engine’ light. I don’t think it is a full recall as yet, but Volvo is gearing up to fix the problem. Mine is booked in for a valve replacement in the next few days.

How to change EGR valves on Volvo D12 diesel engine?

Carefully lift out the valves and wires. Install the new valves one at a time with the valve closest to the front of the engine being number 1 and the one in the rear number 2. Clamp valves onto manifold and tighten then reattach coolant lines and heat shield.

How does an EGR valve work on a diesel engine?

When you slowly and efficiently come to a stop, the valve also closes and stops the flow of exhaust gases. The process continues so long as the engine is operating. Once you shut off the engine, the valve also closes and stays in that position. Diesel and gasoline-powered engines can use an array of EGR valve configurations.

When to change the EGR valve on a Volvo?

Let me show you the symptoms for bad valves and the procedure for changing them. First the symptoms, If you notice a sudden loss of power especially on inclines, excessive smoke from exhaust stack and possibly a check engine light your EGR valves probably just bit the dust.

Can a bad EGR valve cause a vacuum leak?

An EGR valve can become faulty in two ways; it can be closed all the time or open at all times. It could also remain clogged by carbon and debris. 1. If the valve sticks open When an EGR valve is an open position, it creates a vacuum leak. The leak results in incomplete combustion, which usually causes hesitation and rough idling.

Where is the EGR valve on a carburetor?

The tube connects the upper part of the EGR to the carburetor. The valve’s metal disk contains a vacuum diaphragm, a plunger, and spring. Most have an electronic-vacuum EGR valve that is placed inside a cylinder or a small block.

What does the exhaust gas recirculation valve do?

The Exhaust Gas Recirculation (EGR) valve is found in most gasoline and diesel engines, and its purpose is to help re-circulate the engine’s emissions by returning them to the combustion chamber rather than sending them to the exhaust emission system.