Question about 2000 Ford Focus

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Why does my air conditioner make my car stall?

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!

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  • 23 Answers

If your A/C compressor clutch is binding or seized, - the extra load will slow down the engine as everything runs on 1 belt on this car - check your Freon level and refill or replace the clutch/compressor

Posted on May 25, 2017


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Posted on Jan 02, 2017

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SOURCE: 2001 ford focus zx3 stalling

It could be a lot of things, check the gas cap, vacuum leak, IAC, may need a tune-up ( check plugs, wires, air filter), seizing pulley, timing issue (check CKP sensor and CMP sensor), sticking valves, misfire, Fuel line pressure, or an issue with CAT or muffler.Good luck.

Posted on Jun 03, 2009

  • 141 Answers

SOURCE: F150 2004 keeps stalling, then will start after a

you have more then one pump.
and replace you filters

Posted on Jul 14, 2010

  • 141 Answers

SOURCE: truck stalled out while driving will not start

Not sure about your truck older Fords have 2 fuel pumps 1 in the tank & 1 under cab drivers side. Anytime you change a pump you must change your filter. also check your fuel line if it has been pinched or has a leak pressure will drop

Posted on Jul 14, 2010

  • 474 Answers

SOURCE: My engine stalls out when running air conditioner

Sounds like your air coditioner compressor is seizing up robing your motor of power.

Posted on Jul 23, 2010

  • 233 Answers

SOURCE: engine stalls after engine warms up. I put heat in

try testing/replacing the coil. if it stalles after the car warms up that gives the coild time to over heat and die.

Posted on Jan 31, 2011

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Why my 2004 ford focus is stalling and when i use the air it stalls also can you help me?

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 .

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I agree that it's probably seizing up and here's a video I made on how to change the compressor. You also need to change the accumulator and orifice tube when you change the compressor. If the compressor came apart and threw chunks or metal shavings into the system, it's recommended to flush the system but that didn't happen on mine, so I don't show how to do that.

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