Volkswagen Cars 2000-05

Gasoline Engines

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Fig. Fuel filter location-1994 Jetta

All gasoline engines equipped with electric fuel pumps maintain fuel pressure even when the engine is not operating. Because of this, residual pressure may remain in the fuel system for several hours after the engine is shut down.

To relieve the fuel system pressure on vehicles equipped with gasoline engines, perform the following:

  1. Locate the fuel pump fuse, and remove it from the fuse panel.
  2.  
  3. Operate the engine until it runs out of fuel and stops.
  4.  
  5. Remove the fuel filler cap.
  6.  
  7. For safety purposes, disconnect the negative battery cable.
  8.  


NOTE
When the battery is disconnected, the radio security code will need to be reset. Be sure you obtain the security code (if the radio is equipped with a security system) before performing this procedure. Also, the engine management system's adaptive memory parameters may be lost; as a result, the vehicle may operate erratically for the first few miles after the battery is disconnected.

  1. Proceed with the necessary fuel system component repairs. When finished, install the fuel pump fuse and connect the negative battery cable. Don't forget to install the fuel filler cap.
  2.  

 
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