I will suggest that you give more details in your request for help. Some defects will show up when Environmental conditions affect borderline conditions; for instance if cooler temperatures occur overnight a bad battery can drop voltage or dampness can short out a connection. If the car will start after sitting in the Sun the same number of hours (as overnight) it may dry out the dampness. Some vehicles are affected by rain, others by hot temperatures.
Most of the Ford products have a "cold start sequence". It uses water temperature to set the fuel mixture, idle speed, and timing to help the initial start. Sometimes the water sensor sticks on "warm or hot" and does not trigger the sequence. Low antifreeze levels can create an air pocket where the sensor resides and again the sequence will not trigger.
The above conditions assume the engine will even turn over. Sometimes contaminated fuel will settle and be temperature sensitive with water pooling at the bottom of the tank. If starting fluid makes a difference you could have a fuel problem.
I hope these ideas help you. if they do not, re-post with more description about what your car is doing.
you immobilisor is on try the spare key as i thnk you have lost the chip out of it or its been wiped by a mobile phone or strong electric field like a scanner at a airport security
SOURCE: how do i set timing for ford bantam 1.6 2008 model.
timing is set through the ecm there is no manual adjustment
Does it have fuel pressure. Have you tested it for fault codes, you do this with a OBD2 code reader, the test connector is under the dash driver side.
Could be a low battery voltage causing the cranking speed to be low or a tired starter motor sucking up excessive current and leaving the ignition system too deprived to deliver a strong enough spark.
Certainly you should check the spark plugs and the spark power and quality, the battery voltage and perhaps service the starter motor if it is consuming too much current.
If these things make little or no difference it would then be wise to check the fuel pressure and injector spray patterns.
The positive crankcase ventilation system should be checked - if a valve is fitted that is defective the intake manifold vacuum can be affected at cranking speed.
Sometimes imperfect intake valve seats can affect starting. As combustion begins enough gas leaks past the valve seat to corrupt the next incoming charge, effectively weakening the mixture. Another possibility is the coolant or air temperature sensors.
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