does radiator have anything to do with car engine not starting in the cold ?

Answer 1

no...

Answer 2

Yes and no. Bad radiator CAN eventually cause overheat which in turn will prevent engine from starting but even absence of a radiator will not cause a GOOD engine not to start. Again, the engine will overheat within a few minutes, and will fail to start next time.

Answer 3

No.

Internal combustion engines, especially Diesel engines are particularly susceptible to cold-start problems such as slow start times, excessive white smoke exhaust, oil starvation, and poor idle stability. Diesel engines need to generate pressure to heat up the fuel up in the engine, to fire.

Petrol engines rely on the volatile fuel oxygen mixture. A choke valve is sometimes installed in the carburettor of internal combustion engines. Its purpose is to restrict the flow of air, thereby enriching the fuel-air mixture while starting the engine. Depending on engine design and application, the valve can be activated manually by the operator of the engine (via a lever or pull handle) or automatically by a temperature-sensitive mechanism.

Choke valves are important for carburetted gasoline engines because small droplets of gasoline do not evaporate well within a cold engine. By restricting the flow of air into the carburettor, the choke valve causes more vacuum inside the carburettor and hence a greater amount of fuel to be sucked into the engine compared to normal operation. Once the engine is warm (from combustion), opening the choke valve restores the carburettor to normal operation, supplying fuel and air in the correct stoichiometric ratio for clean, efficient combustion.

Chokes were nearly universal in automobiles until fuel injection replaced carburetion in the late 1980s.
In normal fuel injected engines - the engine runs via the Idle Air Control Valve (IAC). When starting the engine and at idle, the throttle plate is closed and the only air entering the engine is through the IAC. This allows a small amount of air to enter the engine for starting and to adjust idle speed. Some times it can stick when cold.

One of the main reasons that engines can be difficult to start is based on the effect which cold has on liquid evaporation. When it is cold, petrol (gasoline) evaporates less and this cause it to be more difficult to ignite.

Another reason by which a cold engine might have problems to start is caused by the fact that oil becomes much thicker in cold than the way it is in hot. Oil, like any other liquid changes its consistency when it is exposed to very low temperatures as well as it changes back when it is in a very hot weather, and this might cause oil to have problems at the time of circulating in the car engine. The cold oil with be thick, and put more strain on the starting motor.

Besides the engine, car batteries might experience problems while being in cold weathers as well and this could affect the engine. Batteries function through chemical reactions which loose agility while being cold and therefore, in such circumstances, batteries don't function properly. The resistance in the leads drops with cold, but then the effectiveness of the battery cell as well. When this happens, the car energy becomes affected and this causes problems for powering the engine starter motor, and sparks.

If these three problems happen together, starting an engine might become a really hard task to achieve. In order to overcome the lack of gasoline evaporation problem, you can spray ether into the engine, which would evaporate quickly and help the engine start.

Besides this, you can also to prevent having thick oil too by using thin synthetic oils.

In Norway, they heat the radiator, to send heat into the engine block to help the oil and volatility of the fuel - with a mains connection, which helps the initial spark as well - and the warm radiator helps warm the interior as well. However, if the rad was frozen, the engine would still start, it would soon overheat however, and the frozen radiator would probably split, and thus damage the engine as soon as it got up to temperature.

Answer 4

Yes if there is only water in it and no radiator fluid it will freeze up and not be able to start, but most likely that is not your problem

Answer 5

No, NO & again NO, a car will start & run without radiator.

Answer 6

no the radiator has nothing to do with it.you can take the radiator clean out and a car can still start.it has to be something else.

Answer 7

no it does not, the car can start without a radiator.

Answer 8

No, unless it's cold enough where you are for your radiator to freeze from lack of proper coolant, and your block cracked.

Answer 9

no, but have you changed the air in your tires from summer air to winter air? and topping off the halogen fluid in the headlights may help...