The other post got me thinking. Sometimes my fuel pump seems to be struggling and making a loud whining noise. But not all the time, just sometimes. Anyway when i fill my gas tank at the end of the week and undo the filler cap there is a loud whoosh.
Is there some sort of breather hole, and i guess mine is blocked. where is it on a 1998 190E 2.0 manual benz.
The same thing happened to me (loud whining noise to start with) on another type of car (280ZX) that had the fuel filter placed after the fuel pump, not in front of it, like the Mercedes set-up. Rust and junk in the fuel tank got into a thimble sized pre-filter on the intake side of the fuel pump that was built into the fuel pump. Eventually I lost power and then the car very suddenly would barely run.
I cleaned the pre-filter and cleaned the gas tank out (lots of rust and the remains of the lining of the tank came out) and everything was fine for awhile. It happened again and I cleaned the pre-filter again and decided to put a filter in line on the intake of the fuel pump and I'm good to go again. Eventually I need to replace the fuel tank as the lining is shot.
Change your fuel filter and check for rust and junk in your fuel tank.
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