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Volkswagen transporter 2 5 tdi white smoke

My 2000 transporter 2.5 TDI has two problems:

1. white smoke
2. difficulty in starting the engine, sometimes engine can be start with normally and sometimes it takes along time to start.

My workshop has checked all other parts like piston, battery, etc is fine, they suspect is the fuel pump. Will be trouble shooting it soon.

Has anyone encounter this set of problems? Any help would be useful.

Thanks
Luke

Posted by on

  • bart696 Feb 20, 2009

    Thanks Aduz. Will convey this solution to my workshop.

    Have a good weekend.

    Luke


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Hi, Luke

White smoke from the exhaust is typically oil burning, caused by, worn valve seal(s) - worn or broken piston ring(s) or a broken head gasket, thus allowing excessive oil in to the combustion chamber, but then most auto shops already know this and would require major engine dis-assembly to truly diagnose this issue.

Hard starting could be oil fouled spark plugs, a result of the same issue.

As a side note: I would take a friend who is somewhat mechanically inclined with you to "your workshop" to engage the person(s) to get an in-depth explanation as to how they checked your piston.

Do not purchase a fuel pump or that repair on an assumption, be sure

One of the tell tale signs of a fuel related issue is black smoke...

Posted on Feb 20, 2009

  • yorbud Jun 24, 2011

    A cracked head can allow coolant to enter the combustion chamber, resulting in white smoke (This is not true in air-cooled engines). Can also result in hard starts, due to improper fuel/air (and coolant) ratios and contaminants on the plugs. Oil produces blue smoke when burnt.

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