Eventually the carbon finds its way down to the oil pickup screen and blocks it, starving the engine of oil. Such a simple problem can then become a major repair when the lack of oil pressure causes damage to engine bearings or your turbocharger.
The first and most important thing to do is to remove all 4 fuel injectors and inspect the washers. Usually we can see straight away which one/s were leaking because they will have carbon all up the sides. If they have been leaking for a while, we need to check the engine oil pickup screen for any blockage. Once we know there is no blockage, we clean the injectors, clean the injector seats and refit the injectors with new genuine washers. We replace all the seals and gaskets on the rocker cover to ensure no leaks once it is back together. Lastly, we change the engine oil and oil filter to remove as much of the contamination as possible
If the engine has done more than 200,000km we recommend getting the injectors tested. 250,000km is generally considered the useful life of a common rail diesel injector, so it pays to have flows and spray patterns checked while they are out.
We do this job as a package for $565
If you chose to get the injectors tested while we have them out, it adds $300 to the job.
For a first class Toyota Hilux, Hiace & Prado injector washer servicing, contact the team at Trade Mechanical today on 07 5502 2894.
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