What could possibly be more frustrating than noises when you start your vehicle… In fact, you probably already perceived noises when you start your Infiniti QX70 and in most cases it’s frustrating. It might not be anything serious, but each new engine starts usually turns into a scary moment during which you don’t know if your engine will start. That is why our editorial staff has decided to compose this content page to support you find its source. To do this, first, we will see the case of noise when starting on Infiniti QX70 but the vehicle does not start, and finally, the noise you can encounter on your vehicle if it starts, first cold and then hot.
I perceive a noise when I try to start my Infiniti QX70, but the engine doesn’t start
I notice a clicking noise at the start of my Infiniti QX70
If you perceive a noise when you want to start your vehicle, and it does not want to turn on, it is very likely that it is the battery that is triggering the problem. In fact, if you hear clicking noise when you start your Infiniti QX70, and it sounds like a ticking, you almost certainly lack the energy to run your starter, check your battery with a voltmeter and swap it if necessary. In the case that after verifying your battery, you still experience a noise when starting your Infiniti QX70 and it does not want to start, browse this content page about starter motor noises on Infiniti QX70 for more details and to discover the source of your problem.
I experience a noise when I start my Infiniti QX70 but the engine it starts
I perceive a noise when I start my Infiniti QX70
- Grinding or squealing type noises when I start cold Infiniti QX70 :
If you perceive a noise when you start your Infiniti QX70, and this noise is like grinding or squealing noise, which can also be connected to vibrations, it is possible that it is the combustion of your vehicle that is involved. In fact if you have an air/fuel mixture that is not good the normal general performance of the engine will be altered. Check the condition of your injectors and air intake system. For more details on the origins of injection-related noises on Infiniti QX70, see this article content. - Cold start friction parts Infiniti QX70 :
If you notice cold friction noises on Infiniti QX70, it is practically sure that they come from one of your belts. Either the serpentine belt starts to wear out and therefore causes a friction noise. It is also possible that the tensioner roller or damper pulley is worn out and that as a result the extension belt make a friction noise, often when cold. Visually check your belt and swap it if necessary. If you have other friction noises, and it doesn’t result from your serpentine belt, we have a full content page on engine of your Infiniti QX70.
I perceive a noise when starting my Infiniti QX70 even when hot
- rubber mount / silent bloc dead motor
If you perceive a clacking noise just when you start your car’s engine and it is more than 100,000 km long, it is possible that some of your engine silentblocks or rubber mounts are good to be changed. And the huge vibrations made by starting the engine can make starting noise on Infiniti QX70. Check their condition and replace them if necessary. Read this content page if you would like to have detailed details on rubber mount noises on Infiniti QX70. - Motor flywheel
Finally, if you perceive a noise that sounds a little like a crank noise when you start your Infiniti QX70, even when hot, it is possible that if your series is equipped with a dual-mass flywheel, it is the source of your problems. In fact, these parts have created a lot of problems on many cars. When they take part in the game they make noise when you start your Infiniti QX70 and when you turn off the engine. Have his condition examined by a specialist.
