Ford focus the consumer gas its torn hit and the car its stop

its garbage

Must have been fitted wrong,check there is not metal to metal contact,must sit on rubber mount.

Check battery,fuel,spark. If you have all 3 items then you need to check starter. Also check the transponder in your key ....make sure it is working and communicating with cars computer or it will never crank. Without more information on the subject this is a vague answer

sounds like sticky throttle, airmass sensoir might be bad..

SOUND LIKE STOPPED UP FUEL FILTER AND DIRTY FUEL INJECTORS.

This is a common problem with these cars and Ford has a free fix for it.

first of all, if light is on have it scanned for a problem code. if no scanner all auto parts stores will scan for free. there has been over 200 recalls for 2000 ford focus, check with ford to see if this is one of the problems. god bless, this is a long run, but check and see if fuel is getting to fuel pressure regulator.

i assume you meen fulepump its in the trunk behind either the passenger side panel or drivers

Safely, take your car on a highway or street ( dry pavement ) with no cars or other persons around. Stop the car,proceed to approx. 20 Km/h. Then push the gas pedal down close to the floor, if the car bucks and chucks change the fuel filter and retest. If the problem is still present, I recommend the fuel pump. Have it checked first.
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get in your car close door hit the unlock button then put key in the ignition cycle the key from off to on (STOP BEFORE START POSITION) cycle key off to on 7 times after the 7th trime the doors should lock the unlock automatically that means u are in trainning mode hit the unlock button on key fob. the key fob should now work if it doesn't then try changing batt