Cold Starting or Hard starting as the name implies is a phenomenon where your car refuses to start especially in the morning or it takes several turns of cranking the ignition key before its starts.

It’s also a common occurrence as low temperatures can cause your car battery to produce less current, making it that much harder for your engine to turn over in the morning. The cold can also stop your engine oil from flowing as well as it should, which puts even more strain on the battery. Essentially, cars and cold don’t get on well.
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Below are the reasons why your car hard/cold starts in the morning;

1- Fuel Pump – The fuel systems of the car may develop issues where the fuel pump may be weak and not have enough pressure or be clogged with dirt, the fuel gallery, fuel lines, clogged fuel filter, fuel pressure valve and the regulator might also be faulty having leaks, all this contribute to the car not starting to give optimal performance.

2-Sensors and Actuators- Sensors such as the faulty coolant temperature sensor, stuck idle air control(IAC) valve, EGR valve leaks, clogged or leaking Injectors can cause your car to struggle with starting.
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*N.B- Injector nozzle and Fuel Pump are known as actuators

Fix/prevention of Cold/hard starting;

1-Replace faulty Sensors and Actuators such as the; Weak fuel pump, fuel pressure regulator and valve, idle air control(IAC) valve, leaky EGR Valve, Coolant temperature sensor, and clogged fuel filters.

2- Switch off every car appliance when the car is parked for the night.

3-Replace faulty and Weak battery


4- Use the recommended Engine Oil

5- Before starting the Car in the morning, put the ignition car start and leave for about five seconds,repeat 3 times before starting the car.
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Thank you sir...very informative