What could be more disturbing than noises when you start your car… In fact, you probably previously heard noises when you start your Renault Laguna 3 and in general it’s frustrating. It may not be anything significant, but each new engine starts usually becomes a scary moment during which you don’t know if your engine will start. That is why our editorial staff has decided to write this content to support you find its origin. To do this, first, we will see the case of noise when starting on Renault Laguna 3 but the car does not start, and finally, the noise you can experience on your car if it starts, first cold and then hot.
I acknowledge a noise when I try to start my Renault Laguna 3, but the engine doesn’t start
I detect a clicking noise at the start of my Renault Laguna 3
If you acknowledge a noise when you want to start your car, and it does not want to turn on, it is likely that it is the battery that is triggering the problem. In fact, if you acknowledge clicking noise when you start your Renault Laguna 3, and it sounds like a ticking, you almost certainly lack the energy to run your starter, check your battery with a voltmeter and replace it if required. In the event that after examining your battery, you still know a noise when starting your Renault Laguna 3 and it does not want to start, refer to this article about starter motor noises on Renault Laguna 3 for more details and to discover the source of your problem.
I perceive a noise when I start my Renault Laguna 3 but the engine it starts
I acknowledge a noise when I start my Renault Laguna 3
- Grinding or squealing type noises when I start cold Renault Laguna 3 :
If you acknowledge a noise when you start your Renault Laguna 3, and this noise is like grinding or squealing noise, which can also be related to vibrations, it is plausible that it is the combustion of your car that is involved. In fact if you have an air/fuel mixture that is not good the normal running of the engine will be altered. Check the condition of your injectors and air intake system. For more details on the origin of injection-related noises on Renault Laguna 3, check out this content. - Cold start friction parts Renault Laguna 3 :
If you know cold friction noises on Renault Laguna 3, 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 plausible 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 verify your belt and replace it if needed. If you have other friction noises, and it doesn’t originate from your serpentine belt, we have a full article on engine of your Renault Laguna 3.
I acknowledge a noise when starting my Renault Laguna 3 even when hot
- rubber mount / silent bloc dead motor
If you acknowledge a clacking noise just as you start your car’s engine and it is more than 100,000 km long, it is plausible that some of your engine silentblocks or rubber mounts are good to be replaced. And the huge vibrations generated by starting the engine can produce starting noise on Renault Laguna 3. Check their condition and swap them if needed. Consult this article if you would like to have detailed details on rubber mount noises on Renault Laguna 3. - Motor flywheel
Finally, if you discern a noise that sounds a little like a crank noise when you start your Renault Laguna 3, even when hot, it is plausible that if your series is equipped with a dual-mass flywheel, it is the source of your concerns. In fact, these parts have created a lot of concerns on many automobiles. When they take part in the game they make noise when you start your Renault Laguna 3 and when you turn off the engine. Have his condition checked by a specialist.
