2003 Volkswagen Jetta TDI Q&A
Could be anything from a EGR to a simple fuel filter. EGR is common on that vintage. - bobrien
ALSO POSS PLUGGED CATT OR RESTRICTED EXH SYSTEM OR AIR FLOW SENSOR.REC COMPLETE DIAG AS NOT TO GUESS - globalhelper
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.
2004 Jetta TDI, 125K, Pads are fine. When you pump the brake pedal 2 or 3 times it looses -for lack of a better term- power brakes. the pedal becomes Hard, like you no longer have power brakes. I...