1997 MERCEDEYS BENZE E-420July 19, 2015July 19, 2015REPLACED FUEL PUMP THREE TIMES WHEN IT DRIVES IT HAS NO POWER WHAT COULD THIS BE Keywords:E420 1 thought on “1997 MERCEDEYS BENZE E-420” Freeautomechanic July 20, 2015 at 9:29 am Could have a clogged catalytic converter. Did it make a difference after replacing the fuel pump the first time? Have you checked the fuel pressure and or the fuel pressure regulator? Did you also replace the fuel filter? Check engine light on? any codes? Comments are closed.