2005 ford focus does not start

clean and re tighten the terminals

check the alternator and regulator are charging the battery

also depends on how old the battery is

if no better starter motor /soleniod sticking

Elaborate please. Does the starter turn the engine over? Does the start not even turn?

are you getting power to the starter , no do not change anything else , should have not changed that , stuff , do not just change parts . when you turn the key , is the dash lighting up, are your headlights coming on , if not and you have a good battery and starter , ck the wire on the back of the alternator , and make sure it is hot should be hot all the time , I mean 12 volts, the red wire , how is your ground wire , if you are not getting any power with the key on and the battery is good and the starter is good and you cked all the wires to make sure none broke , could be you ignition switch , but have to know exactly what it is doing with the key being turned to start . LMK

Ifyour car is an automatic it will have a neutral safety switch or sometimes called a trans range sensor.Also some cars have a starter relay in the distribution/fuse box under the hood as well as check the diagram on the lid of the box for a starter fuse.

If the starter is not turning at all, check the starter solenoid and the ignition relay.

We can only suggest things-- IF you provide:

What was tested
How was it tested
What were the test results

To say you checked something, means nothing
to an experienced person

Did you check for OBD 2 Codes?

Is it a --- NO Crank or a NO Start--- Condition?

What you can do, is have a repair shop do the required
testing to find a problem--you knew that

try pushing in on the key. and move the steering wheel right to left as you turn the key

Try wiggling the key and tapping near the ignition and see.If the Key starts turning in the ignition.Also spray wd-40 in the ignition switch hole and let the wd-40 spray liquid remain in there for 30 minutes then see if you can turn the key in ignition.Try this wd-40 spray couple of times,if still the same problem then,the ignition has to be replaced.Also the keys are to be reprogrammed by the dealer.Without getting your car key reprogrammed they will not work with new ignition lock cylinder. This problem is very common in ford focus,many other users too have noticed this and are very disappointed with the ford service due to this problem.Click this link directly to see the same problem with other ford focus users;--- http://www.carcomplaints.com/Ford/Focus/2003/accessories-interior/key_wont_turn_in_the_ignition.shtml ----------------- Thank you.

Try unlocking the driver door with the key.Then try to start the car. Hope this helps.

if the battery is ok there could be one of two problems have you tried the spare key? it may be a problem with the immobiliser look at the red light near the time clock it should go out when atempting to start. second try tow starting or bump starting you may have a faulty starter motor do not try this to often or you could damage the cat. do you get any noises when trying to start such as a clicking ? this would indercate faulty solinode on starter hope this helps