You possibly ran out of gas and sucked trash into your fuel filter partially stopping it up.change fuel filter if possible.this may be your problem
SOURCE: On my 2001 Ford Focus.
IS YOUR LOUD VIBRATION A LOUD RATTLE IF SO IT COULD BE YOUR CAT BREAKING UP THIS WILL CAUSE BAD RUNNING ..GIVE YOUR ENGINE A GOOD REV 3 or 4 TIMES OUT OF GEAR AND LISTEN FOR A RATTLE,,,,, HOPE THIS HELPS IF NOT CHECK THAT THE EXHAUST IS NOT BLOCKED ?? BEST OF LUCK-ELL BOY.
SOURCE: Running rough and stalls during wet weather otherwise runs fine.
Your ignition coil is cracked. Replace it with a new OEM unit.
SOURCE: 2001 Nissan Maxima- runs rough, stalls when idle
Timing belt could have skipped a tooth.
Horrible vacuum leak could have started. Listen for suction noises when you raise the hood.
Someone could have poured sugar in your tank.
You could have put diesel in your tank instead of gas.
Could be a bad MAP sensor, TPS sensor, etc.
Need more details to be precise.
SOURCE: car runs rough and stalls. 03 ford focus code
You have a cooling problem with this vehicle, what happens is that as soon as the engine is running too hot the PCM starts by switching some of the cylinders off to try and control the temperature but if you ignore this the PCM will start cutting out two cylinders at a time and restricting the RPM to 3000rpm only, called limp mode. This trouble code will be registered in the PCM under the code P2199
If you still ignore this the PCM will switch the engine off completely to avoid serious damage to the engine
Have a look at the coolant level, Radiator leaks, Water pump, thermostat, blocked radiator
Hope this will help you
SOURCE: Our 2001 ford focus when it idles it surges
Check the pcv hose for leaks at the intake manifold. Common problem.
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