GDI Engines and Why do we have them?
With stricter emissions specifications being driven by governement, better fuel economy demanded by the public we have seen the popularity of very small displacement engines become the norm. To achive these goals the new GDI engines offer you lower fuel consumption, lower emissions and more power than engines with a conventional fuel injection systems. Adding turbocharges with GDi makes for a very attractive performance/fuel efficient combination keeping you and the enviroment happy. This is the wave of the automotive future!
Carbon Build Up And Its Effects
GDI engines may offer you lower fuel consumption and more power than engines with a conventional fuel injection system but since your intake valves are not bathed in fuel, they are not kept clean. Eventually, carbonized fuel and oil build up in the intake tract and valves and will affect your vehicle’s performance. As the carbon deposits build up, they can prevent the intake air from flowing correctly, engine valves from closing properly, resulting in a rough idle, stalling, hard starting, poor fuel mileage, vibrations, reduced power, engine misfires, the “Check Engine” warning light being activated and an increase in oil consumption.
What are your options?
If you have started to feel slight effects of the carbon build up, rough run or loss of fuel mileage or loss of power early enough you can perfom a chemical clean of the engine intake, valves and combustion chambers. If the problem has been left to long and the condtions are severe, the check engine light is on and/or missfiring has started you could need a more aggressive walnut shell blasting done. What one is best for me? We cant answer that in a web page. The issues are just to varied and need to be discuss over the phone or in person. If you feel you are having any of these symptoms please dont hessitate to call our service team.
Chemical Carbon Cleaning (maintenance or minor issues)
Recommended Frequency of Carbon Cleaning
This regular maintenance is recommended every 50,000km (or less by some manufactures) to help prevent carbon from building up in the first place. This process can also be used when carbon build up is not severe and driveabilty problems are minor.
If you would like more information about this vital service, contact our experts who can answer any questions you have.
Walnut Blasting (for problem solving and severe build up)
This method of carbon cleaning uses walnut shell powder much like sand in the process of sandblasting but walnut shell powder is much less abrasive than sand and walnut blasting won’t damage your engine.
At Norlang Auto, we are frequently told by our customers that they believe the performance of their vehicles has decreased even though they service them and change the oil on a regular basis. As the mileage of your car increases, it starts to become more sluggish and not as fuel efficient as it was designed to be. This is due to carbon build-up or carbonizing that occurs in the intake tract and valves. This problem is one of the main disadvantages facing modern vehicles gasoline direct injection (GDI) engines. GDI engines are found in more and more models since manufacturers are able to increase fuel mileage, power and efficiency much more effectively than with any other type of fuel injection system. This type of engine is normally found in European vehicles like Audi, BMW, Mercedes-Benz, Mini Cooper, Volkswagen and many more. It is now being used in as much as 45% of 2015 and newer North American and Asian vehicles..
Our experienced and highly trained technicians at Norlang Auto will blast away the carbon build-up using specialized tools, walnut powder and compressed air. Once the carbon build up is gone from your intake tract and valves, your vehicle will perform as it was originally designed.
Recommended Frequency Of Walnut Blasting
Vehicle manufacturers like BMW, recommend that we perform walnut blasting every 50,000 kilometres in order to maintain fuel efficiency and keep our vehicles running at their peak. In general, most manufactures recommend that we perform this service between 35,000 and 65,000 kilometres. Naturally, how often we walnut blast our vehicles’ engines depends on our driving habits, the quality of fuel that we use and how well we service our vehicle.
If you would like more information about this vital service, contact our experts at Norlang Auto who can answer all your questions and can conduct a thoroughly professional Walnut Blast in order to ensure that your engine is performing as it should be.