How to Solve the Abnormal Noise from the High-Pressure Fuel Pump in Volkswagen Tiguan?
1 Answers
Volkswagen Tiguan high-pressure fuel pump abnormal noise is caused by insufficient fuel in the tank or the gasoline filter not being replaced for a long time. The following is a detailed analysis of the reasons: Insufficient fuel in the tank: When the fuel level warning light on the dashboard lights up, there is approximately 7 liters of fuel remaining in the tank, and the fuel level is roughly at the red line shown in the figure. Due to the low fuel level, the fuel pump motor does not receive sufficient cooling and lubrication, which can cause the motor to overheat or even stop. If the fuel pump frequently operates under such conditions, premature damage to the fuel pump is inevitable. Gasoline filter not replaced for a long time: If the gasoline filter is not replaced for a long time, the fuel supply system of the gasoline filter becomes severely clogged, making it difficult for the fuel pump to pump fuel. Operating under high load for an extended period can lead to damage of the fuel pump.