Loss of Power Due to Oil and Carbon Build Up in Intake Manifold on Volkswagen Beetle TDI

Oil and carbon tend to build up, creating restrictions in the intake manifold. Symptoms will be loss of power (sometimes severe) and poor fuel economy.

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Average mileage: 155,333 (140,000–165,000)
Engine affected: 1.9L 4 Cylinder Diesel Turbo
6 model years affected: 1998, 1999, 2000, 2002, more2003, 2004
9 people reported this problem
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problem details
2002 Volkswagen Beetle TDI - 1.9L 4 Cylinder Diesel Turbo 140,000 mi,
Had loss of power and black smoke. intake was 90% plugged. easy fix 2hrs now runs like new. used round wire brushes don't let build up go down the intake. Pull the junk to you.