Facing repeated noises on your car has a tendency to be unpleasant, a vehicle is so sophisticated that it is most of the time challenging to locate its origin and even more problematic to find the part that motives it. In case you too have previously came accross a cold engine noise on your Hyundai Sonata, we can surely help you. Indeed, we made the decision to produce this content page to be able to inspect the main motives of an engine that rattles when cold on your Hyundai Sonata. First we will check out engines that is rattling only at start up, then because of unsuitable oil and finally because of glow plugs.
The engine of my Hyundai Sonata is rattling only when starting
If the engine of your Hyundai Sonata produces a cold rattles, especially when starting and which disappear quickly afterwards, it is possible that your engine lubrication is at fault. Indeed, the oil strainer (the part that sucks up the oil and makes it rise to the top of the engine) can be harmed and therefore take some time to make the oil rise when it is still very thick. If this is your case, after a few tens of seconds the engine that slams your Hyundai Sonata should go back to normal functions because the lubrication of the engine will be done normally, be sure you check the condition of the engine.
Engine of my Hyundai Sonata that rattles when cold because of too fluid oil
Another possibility which can explain an engine which cold rattling on your Hyundai Sonata is that during an oil change the choice of oil was not perfect, in fact, engine oils differ on their viscosity, which we will contrast 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 selected, it is possible that when cold, the lubrication it allows is not enough to limit engine slamming, compare the oil used and the oil recommended by the manufacturer, if your engine clicking is strong or if it persists on your Hyundai Sonata, do not hesitate to change it with the right oil.
Engine that rattles when cold on my Hyundai Sonata cause of the glow plugs
If you have a diesel engine, your engine is rattling when cold, and it has problems starting when it is cold, it may be your Hyundai Sonata glow plugs that are defectives. Indeed, a dead spark plug will induce the associated cylinder not to heat up and will create a stronger rattles on an engine Hyundai Sonata, so consider trying out the state of your spark plugs individually using a multimeter, it may be that only one is involved like all of them. Here, we have described to you, the main reasons of an engine that cold slam on a car, do not hesitate to have a look at our page dedicated to your car to find extra info on all the breakdowns related to your car.
To get more tips on the Hyundai Sonata, take a look at the Hyundai Sonata category.
