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| Annular spanner -U-40072- |
Faulty injectors cause the following problems: |
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| Pinking in one or several cylinders |
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| Excessive black smoke in the exhaust |
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| Blue smoke on cold starts |
Faulty injectors are found by successively releasing the joining nuts of the injection pipes with the engine on fast idle. If the engine speed remains constant when a nut is loosened, it is an indication that this injector is faulty. |
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