Land Rover Repair: cold start, cold cranking amps, moisture buildup

Question
hi, in winter in order to start the car some times why does it take long time to start it. what could be the cause for any pariculer car.
thank you so much!

Answer
Hi J,

for starters :)

oil thickens as it gets colder hence the starter has to crank a cold engine covered in sluggish thick oil.  Add to this the moisture buildup within the engine and that fuel, air and spark has to ignite in preferably dry conditions.

A diesel engine differs from a gas engine in that the fuel is compressed and thus cold temperatures have a less influence in engine starts.  Diesel engines are often preferred in extreme cold conditions so long as the ignition system is in good condition.

With either engine, a block heater is highly recommended and a shelter (garage, car port) from the winds and snow improves the engines ability to start.

For gas engines, the condition of the engine, its electronics and the quality of the fuel being used, all have an influence.  If your ignition system is old and worn, the cold moisture that surrounds the engine compartment can drain off the spark that is generated and passed thru the wires.  Your battery, alternator, coil and spark plugs are all influenced by cold moist air.  Remember too that a battery can discharge faster in colder temperatures, thus CCA ratings (cold cranking amps) are important in choosing the right battery.

I hope this helps,

JohnMc