Coming accross constant noises on your car is likely to be annoying, a vehicle is so sophisticated that it is generally challenging to track down its origin and even more problematic to find the part that triggers it. In case you too have already experienced a cold engine noise on your Mercury Mariner, we can definitely support you. In reality, our team decided to publish this content page to be able to review the main triggers of an engine that rattles when cold on your Mercury Mariner. First we will check out engines that is rattling only when turned on, then because of unsuitable oil and finally because of glow plugs.

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The engine of my Mercury Mariner is rattling only when starting

If the engine of your Mercury Mariner generates a cold rattles, specifically when starting and which ends fairly quickly afterwards, it is possible that your engine lubrication is to blame. In reality, 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 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 Mercury Mariner should return to normal operation because the lubrication of the engine will be done normally, be sure you check the condition of the engine.

Engine of my Mercury Mariner that rattles when cold because of too fluid oil

Another situation which can explain an engine which cold rattling on your Mercury Mariner is that during an oil change the selection of oil was not best, in reality, engine oils differ on their viscosity, which we will review 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 Mercury Mariner, do not think twice to swap it with the right oil.

Engine that rattles when cold on my Mercury Mariner cause of the glow plugs

If you have a diesel engine, your engine is rattling when cold, and it has difficulty starting when it is cold, it may be your Mercury Mariner glow plugs that are at the end of their life. In reality, a dead spark plug will cause the linked cylinder not to heat up and will cause a stronger rattles on an engine Mercury Mariner, so take into consideration examining 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 motives of an engine that cold slam on a car, do not think twice to consult our page dedicated to your car to find more information on all the breakdowns associated with your motor vehicle.

If you have any further questions about the Mercury Mariner, do not hesitate to consult our Mercury Mariner category.