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Issues Caused by Contaminated Diesel on the Iveco Daily

Model: IVECO Daily MK 2 - Years: 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
Part: Checks and maintenance

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Video tutorial

This video is very interesting as it shows the problems that dirty diesel can cause to the engine of an Iveco Daily. Despite the fuel being heavily contaminated with algae and dirt, the vehicle managed, albeit with difficulty, to get the YouTuber home.

In this case, the first step is to work on the tank: disconnect the hoses, remove the float, clean the bottom of the tank, and drain the fuel. The pre-filter that was installed shows some dirt deposits.

Next, blow through the hoses, both the feed and return lines. The vehicle shown in the video is quite 'old', as a more modern design would have had the pump and injectors destroyed by diesel in that condition.

Nevertheless, we must clean the diesel filter by unscrewing it and cleaning it, then clean the pickup inside the tank (where we find real mess) and reassemble it inside the tank. Therefore, never let the tank run low and be careful where you refuel: only use quality diesel.


Updated on 21 October 2026 by ScegliAuto


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