Most shaking in the steering wheel on ANY vehicle is caused by balance problems. The tire can be out of balance, the wheel can be bent or the axle (half-shaft) can be damaged and out of balance.
According to the 2003 Ford Focus Owner Guide : ( Motorcraft MERCON automatic transmission fluid is used as the power steering fluid )
You can huge amounts of WD-40 to the lock cylinder of your lock key and move your key inside and outside many times while trying to turn your ignition on in order to break free your locked steering wheel of your 2003 Ford Focus.
The 2003 Ford Focus has 16 valves.
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The 2003 Ford Focus has a 5-speed manual.
The 2003 Ford Focus is a gas-powered vehicle.
The 2003 Ford Focus has an inline 4 engine.
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The curb weight of the 2003 Ford Focus is 2598 lbs..
The 2003 Ford Focus runs on regular unleaded.
The 2003 Ford Focus is 14 ft. 0.1 in. (168.1 in.) long.
The height of the 2003 Ford Focus is 4 ft. 8.3 in. (56.3 in.).