Not much info to go on but if there is no "check engine" light and the fuel filter has been replaced, have the fuel pump pressure tested. If that doesn't help please tell us year, make, model and engine of the vehicle.
Check for a major vacuum leak.
plugged catalytic converter
My 89 jeep Cherokee surges at idle and sometimes stalls but runs fine once you are going what could cause this?
vacuum leak?
Check your vacuum hose.
Well FORD is a pos, Fixed Or Repaired Dailiy Found On Road Dead
the idle jet in the carb is blocked and needs to be cleaned out and reset
Most likely the ignition module.
when kick down the gas pedal to accelerate, the car downshift but then stalls and then engine stays rough until i turn off the engine and restart it then the engine runs normal again till the next kick down.
Idle Air Control Valve.
My E150 van 1994 5.8L has intermittent misses at idle and cruise. Cruise control & Idle air control doesn't work? Stalls when trying to accelerate from a dead stop (traffic light, etc.) Can you give me a more detailed explanation for code 212?
check your mass air flow sensor. Im having the same problem right now with my 1991 Pontiac Grand Prix & i had a mechanic tell me it was my mass air flow sensor.