S500 Starts, runs smooth, stumble then stall
Thread Starter
Junior Member
Joined: Jul 2011
Posts: 16
Likes: 4
S420
S500 Starts, runs smooth, stumble then stall
So after redoing my fuel filter again, and charcoal canister after it was saturated to the max in fuel i still have one remaining issue....
once car warms up to a certain point where there is excess pressure in the fuel system, i lose power, then it gets to a point where the idle changes, stumbles, then cuts out. when i attempt to restart it after a few min, it stumbles to start, then stalls or will run. noticable loss of power after this happens.
if its not the fuel filter, and all hoses from filter are properly installed, and not the new charcoal tank, (ps the old one one was stuffed full of gas, took 20 min to drain fully) something else is obviously wrong. i do not have any check engine codes, so what else is the issue.
once car warms up to a certain point where there is excess pressure in the fuel system, i lose power, then it gets to a point where the idle changes, stumbles, then cuts out. when i attempt to restart it after a few min, it stumbles to start, then stalls or will run. noticable loss of power after this happens.
if its not the fuel filter, and all hoses from filter are properly installed, and not the new charcoal tank, (ps the old one one was stuffed full of gas, took 20 min to drain fully) something else is obviously wrong. i do not have any check engine codes, so what else is the issue.
Thread Starter
Junior Member
Joined: Jul 2011
Posts: 16
Likes: 4
S420
would this cause fuel to be pushed back into the charcoal can tho?
also, this is odd that this started 3 days after i changed the fuel filter....before the fuel filter change i had a long crank issue, after it would fire right up. it still fires up quickly, unless there is excess vapor....then it chokes when it reaches that point. could changing the fuel filter have messed up the pump in the process? the pump and first filter were from 03.....car has 278k on it.
also, this is odd that this started 3 days after i changed the fuel filter....before the fuel filter change i had a long crank issue, after it would fire right up. it still fires up quickly, unless there is excess vapor....then it chokes when it reaches that point. could changing the fuel filter have messed up the pump in the process? the pump and first filter were from 03.....car has 278k on it.
Last edited by tackleberry23; Jun 18, 2021 at 10:48 AM.
