The EGR Valve system effects all vehicles and below you can see we have had experience with all types of vehicles suffering from EGR problems. EGR valves are fitted to both petrol and diesel engines. Replacement EGR valves can vary in price from anything as little as £150 to as much as £600. In some cases the EGR valve can be removed and cleaned but this is only a temporary fix until the carbon builds up again and causes future problems. These are some of the more common faults which can be related to the EGR system. – If your EGR valve flap is stuck open or stuck shut, then this is possibly the reason why.įurthermore, the EGR valve system allows the leaking oil to pass up through the inlet system and into the inlet manifold and combustion chambers – where it shouldn’t be! – This will cause fluttering and loss of power as well as oil smoke.ĮGR faults can cause various problems on a vehicle such as: The oil & carbon mixture can quickly build up around the EGR valve and cause problems such as a sticky flap. This means not only will you have carbon-rich exhaust gasses passing through the EGR valve, but also oil. If the vehicle is fitted with a turbocharger then the problems are more dramatic because with time, turbochargers are subject to wear & tear and so start leaking oil from the seals but naturally only in small quantities. It could cause problems with the flap opening and closing properly. It is expected that over time, carbon build up will occur and can interfere with the operation of the EGR valve flap. Recirculating exhaust gasses is basically dumping the carbon-rich gasses back into the inlet manifold from the exhaust manifold or even from the turbocharger. When working with exhaust gasses, nothing is clean. The Problem With The Exhaust Gas Recirculation (EGR) Valve System Doing so, however, does reduce the rate of combustion and reduces the temperatures produced per combustion cycle and the end result is not only a reduced level of NOx compounds but also a significant decrease in performance from the vehicle. This is done by allowing a specific amount of exhaust gasses enter into the inlet manifold via the EGR valve (dependant on throttle position, speed of the engine, outside air temperatures and so on.). In more technical detail, the EGR valve recirculates exhaust gasses back into the air/fuel mixture which in turn then dilutes the air/fuel mixture enough to keep the NOx compounds within breathable limits. This means that the gasses are going through the combustion cycle twice before exiting and so reducing the emissions of the vehicle. What is an Exhaust Gas Recirculation (EGR) Valve?Īn Exhaust Gas Recirculation Valve, often referred to as an EGR valve is a mechanical flap designed to recirculate exhaust gasses back into the engine before they exit the exhaust into the atmosphere. IF YOU’RE HAVING EGR PROBLEMS, WANT A QUOTE FOR REMOVAL OR EVEN JUST SOME FRIENDLY ADVICE – CALL US TODAY ON 08.Ĭlick Here To Find A Sinspeed Approved Dealership Near You – We Operate A Nationwide Service Covering The UK & Ireland. For more information, please call us for a quote today on 08. We can completely de-activate the EGR system on most vehicles old & new, our service is a completely bespoke and custom EGR delete service from start to finish. The EGR valve gets blocked up for a number of reasons and when it does, it can effect the performance of the vehicle and become a costly fix. EGR Removal is becoming a popular choice for motorists as they become more problematic and expensive to repair/replace.