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The first-generation Ford Focus was manufactured in Europe from 1998-2004 and in North American from 1999 to 2007.

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2003 Ford Focus no acceleration

My missus's trusty 03 Focus has developed a rather bad problem, she was coming back from the shops this morning and it started to die on her, she managed to get it back home and i took it for a drive, It idles fine and revs in neutral no problem and when initially accelerating off it seems OK but after driving for half a k or so when trying to accelerate it just dies, still idles fine, doesn't cut out at all but just no acceleration, I could sort of idle home but give it any revs it just dies back, not cutting out just very weak acceleration, Also I'm pretty sure i can hear some pinking that was never there before.

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I have the same EXACT problem......did you solve it? Fuel pump?

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Please come back and tell us how you solved it!?

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Same problem with my 02 ford focus 100k mils and I took it to be read with the OBDll no codes.

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Blocked Catalytic convertor.

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Guys the problem is a blocked catalytic converter or partial blockage of your exhaust system. How I found out mine is by taking one of the o2 sensors out and starting it for ONLY a little while because you can burn things like wires ect. But it allowed my 2.3l focus to rev all the way and no more bucking while driving and it ran like a little rally car again! So I will try to unclog the debris that is in the exhaust by debris I mean the insides of my cat that rattled apart after awhile. Good luck.

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@edwarrd This is a case of fuel starvation . There are many possible reasons for the fuel starvation . The best thing to do is check for engine codes ,OBDII codes . The most probable issue would be fuel lines leaking of a plugged fuel filter. If this brings no joy then move on the sensors . Clean the Map sensor and clean the throttle body . Check your o2 sensors. You can also check for back pressure on the fuel tank . test this buy running the car without the fuel cap . there could also be a plugged Catalytic convertor. Is the car overheating when this is happening ? If so it could be a timing issue . it could be a bad timing belt or chain and the pinging your hearing is bad timing. The best thing to do is get the codes read . When you do let us know your codes and we can help further. Hope this helps

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Sounds to me like the coil pack.. 30 quid second hand, 4 screws, 4 spark leads and a sensor wire to be swaped over..back on the road.

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My car keeps surging .. if I have the air on and the lights my lights flicker on and off .. if I turn on my fog lights or the dome light it surges on and off .. help

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I concur. New ignition coil and HC leads solved this issue on my 2005 MK1 1.6

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Get a new version updated OEM coil pack. The old ones are designed to fail. One huge problem solved. Trust me. Been there 3 OEM coil packs. 10 years one updated coil pack later perfection.

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Ed Claydon 将永远感激不已
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