I have a 2004 Ford Focus and it keeps stalling out! I turn the air on and the car runs really rough makes like a sputtering sound while in drive at red lights? I have had a new water pump and a new fuel pump put in the past 2 weeks. Why when I turn the air on my whole car feels like its going to stall? I also cant drive to the shore because every year I need a tow truck to get me because it stalls out!!! If I fixed everything and its still sputtering could it be electrical also?? I cant take it anymore!
A/C compressor going bad ,maybe ! Had 03 focus same problem ,without the A/C on the car ran great . When turning on the A/C the PCM - engine computer is suppose to raise the vehicle idle so it doesn't stall . How does your car run without the A/C on .
SOURCE: I HAVE A 2000 FORD FOCUS SE SPUTTERING AT RED LIGHT
Ford as a service bulletin on the Focus fuel pump. Just got mine changed for free. (10 year warranty extension from date of warranty start).
SOURCE: 01 ford focus with no engine service soon light car stalls while driving gas pedal to the floor
Check TPS sensor[RPM]and IAC sensor.
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