Question about 2003 Ford Focus

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Lights and fan blower motor speed decreases when idle steady

2003 ford focus,when holding the idle at around 1500 rpms the lights and the blower motor almost stop completely and lights almost dim completely,the alternator and battery ck ok at idle,on test drive it feels like someone is turning off the ignition,no codes stored in computer, thank you

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Vachum modultor motor is leaking.

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1 Answer

What will make a 2003 ford focus 2.0L idle up when starting the motor


Probly a sensor issue or idleair control motor thats worn. Get car scanned at a partstor to confirm

Dec 05, 2016 | Ford Cars & Trucks

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My 2007 Ford Focus stalls at stops. The check engine light does not come on before hand, the rpms just lower to nothing. We cleaned the maf and the idle air control, changed the oil and transmission


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Nov 06, 2012 | 2003 Ford Focus

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My 2003 Ford Focus dies when idling after a little road trip.


have the check engine light checked at a parts store its usuall free. I would bet its the idle air control motor. This controls the fuel air mixture at idle

Apr 18, 2012 | 2003 Ford Focus

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I have a 2003 ford focus with a 5sp manual transmission, i just got the wheel bearing fixed and now my car idles at regular 1800 rpms, but i lost all power essentially my shift light is always on even in...


If your car lacks power it needs the extra RPMs to push the weight of the vehicle. Most cars idle smoothly at about 700 RPMs. Check the engine compression on all cylinders. If they are all even (within 10lbs) and about 100 psi or more then you may just need a tune up or some work done on the fuel system. Hopefully the engine isn't running hot or has oil control problems which will require some major repairs.

Mar 12, 2011 | 2003 Ford Focus

1 Answer

2003 Ford Focus ZTS. After running on the highway


Check for stuck throttle plate. Check pcv hose that goes to the intake manifold. They get soft and leak, check while running.

Mar 19, 2010 | 2003 Ford Focus

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Only works on number 4


Are you talking about the blower motor? If so, your blower motor resistor is bad, it is located in the environmental station next to the blower motor, held in with two screws, remove it and replace it and your lower blower speeds will return. Hope this helps, let me know

Dec 07, 2009 | 2003 Ford Focus

1 Answer

Idles low when ac/heat is on and lights dim


fix the idle speed to 850-900 rpm
check the alternator and voltage regulator as the voltage should read 14.5-14.8 volts dc at 1000rpm or higher regardless of what is running
have it bench tested by an accredited auto electrician

Aug 04, 2017 | 2002 Ford Expedition

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Engine stalls and accelerates


check the idle air control motor

Apr 17, 2009 | 2003 Ford Focus

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