Having a care in good conditions appears to be a vital prerequisite for most people, as we are all dependent on our cars, regardless whether it is to get to your job or for personal reasons. So when we identify something different about our Mercury Mariner, we rationally are likely to ask ourselves queries. If, in your case, it’s your engine that rattles when hot on your Mercury Mariner, you’ve come to the good website. We know that this is a repeating trouble and so we have decide to produce a focused article content to enable you deal with it. To do this, first we will look at the problems relevant to hydraulic tappets and valves, then at combustion problems, and at last at the engine rattling when hot because of trouble relevant to the lower engine.


Engine rattling when hot on my Mercury Mariner because of the hydraulic tappets

If you find out the engine hot rattles on your Mercury Mariner, and this noise is based at the top of the engine, it means that it comes from your cylinder head and its accompanying parts. There are two possible motives of an hot engine rattling on a Mercury Mariner. Either the hydraulic tappets, ordinarily it is because of their faulty “hydraulic catch-up” system that you will hear these clicking noises, often when hot and not when cold. Otherwise, it is the play of your rocker arms or their state of wear that is to blame. In such a case, consider replacing them.

The engine of my Mercury Mariner is doing some rattling noise when hot because of combustion problem

Second probability, if you have the feeling that the hot engine rattling is relevant to the combustion of your engine, there are three possible motives of this one. It may be that your timing is out of sync and that it does not manage the synchronization of the different elements of the engine to create good combustion. And to finish, the most classic cause comes from your injectors, which are either clogged or damaged. Don’t forget to go to your auto technician so that he can inspect the part that seems to be at the origin of your engine’s hot clicking on your Mercury Mariner.

Engine of my Mercury Mariner rattling cause of problem in the lower part of the engine

At last, if you have determined the location of origin of your engine that hot rattles on your Mercury Mariner that comes from your lower engine, it may be that your connecting rods or piston pins are the origin. In both circumstances, the risk in the long run is engine breakage. These two repairs are particularly complex and most mechanics will advise you to replace the engine of your Mercury Mariner. In any case, don’t wait when you identify such a trouble, it will let you to anticipate an upcoming expense or at best find a more affordable remedy, rather than find yourself faced with a failure with the origin of your engine rattling when hot and the end end result being your engine giving out on you when you come home from work. Don’t hesitate to have a look at our catalogue of items on your car that can enable you solve other problems or learn more about your Mercury Mariner.

If you want more tutorials on the Mercury Mariner, go to our Mercury Mariner category.