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

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: 97,643 (70,000–117,000)
Engines affected: 1.8L 4 Cylinder Turbo, 1.9L 4 Cylinder Diesel Turbo, 2.0L 4 Cylinder
2 model years affected: 1999, 2001
6 people reported this problem
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problem details
2001 Volkswagen Beetle - 2.0L 4 Cylinder 97,000 mi,
fan stays on, car slugage
2001 Volkswagen Beetle - 2.0L 4 Cylinder 106,572 mi,
The epc code is coming on an losing power
1999 Volkswagen Beetle - 2.0L 4 Cylinder
My car revs up before I can change gear
2001 Volkswagen Beetle - 2.0L 4 Cylinder 70,000 mi,
vehicle start and shut out , no power ,