Air is in coolant system. Bleed system to fix.
The shuddering could be caused by several things. Check the front end parts on the Fiesta to start with. A loose or worn part is the most likely cause of the problem.
When you drink cold water, your body may feel hot because the cold temperature of the water causes your blood vessels to constrict. This can lead to a temporary increase in body temperature as your body works to regulate its internal temperature.
You need to put a key in the ignition and turn it.
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calcium hydrogencarbonate.
A transient problem is a type of problem typically referred to by computer technicians. It's a problem that no matter how hard you try you cannot seem to duplicate. The causes of these problems are rarely found and hard to fix.
It sounds like your dizzy cap isn't lined right which causes the engine to stay running after the ignition has been switched off. i had the same problem with my fiesta
MDT
Too much booze
Foot drop is a symptom of an underlying problem, rather than a disease itself. It can be temporary or permanent. Causes of foot drop include:nerve injurybrain or spinal disordersmuscle disorders
I have the same problem and was told it is the fuel temperature sensor.
If the temperature goes up and down and the coolant level is ok your thermostat is probably sticking. Replace the thermostat and you should solve the problem.