Facing repeated noises on your car will probably be unpleasant, a car is so complicated that it is generally complicated to discover its origin and even more challenging to find the part that causes it. In case you too have previously came accross a cold engine noise on your Kia Optima, we can certainly support you. Indeed, we decided to produce this document to be able to inspect the main causes of an engine that rattles when cold on your Kia Optima. First we will look at engines that is rattling only when starting, then because of unsuitable oil and finally because of glow plugs.
The engine of my Kia Optima is rattling only when starting
If the engine of your Kia Optima produces a cold rattles, especially when starting and which disappear rather quickly afterwards, it is possible that your engine lubrication is responsible. Indeed, the oil strainer (the part that sucks up the oil and makes it rise to the top of the engine) can be broken and therefore take some time to make the oil rise when it is still very thick. If this is your situation, after a few tens of seconds the engine that slams your Kia Optima should return to normal functions because the lubrication of the engine will be done normally, be sure you examine the condition of the engine.
Engine of my Kia Optima that rattles when cold because of too fluid oil
Another situation which can explain an engine which cold rattling on your Kia Optima is that during an oil change the choice of oil was not perfect, indeed, engine oils differ on their viscosity, which we will compare with the “W” value, the higher this value is the thicker the oil will be and vice versa. If a too fluid oil has been chosen, it is possible that when cold, the lubrication it allows is not sufficient to limit engine slamming, compare the oil used and the oil suggested by the manufacturer, if your engine clicking is strong or if it persists on your Kia Optima, do not think twice to replace it with the right oil.
Engine that rattles when cold on my Kia Optima cause of the glow plugs
If you have a diesel engine, your engine is rattling when cold, and it has complication starting when it is cold, it may be your Kia Optima glow plugs that are defectives. Indeed, a dead spark plug will cause the associated cylinder not to heat up and will trigger a stronger rattles on an engine Kia Optima, so take into account diagnosing the state of your spark plugs separately using a multimeter, it may be that only one is concerned like all of them. Here, we have explained to you, the main factors of an engine that cold slam on a car, do not think twice to browse our page specialized to your car to find more information on all the breakdowns associated with your car.
To get more tips on the Kia Optima, take a look at the Kia Optima category.
