It is never enjoyable to experience a sound on your vehicle that you don’t know where it comes from. You may be wanting to know what to do when you identify a reversing gear noise that remains on your Buick LaCrosse? Any gearbox trouble can be critical, but before making sure, it is better to do a few checks. Our team has made this content page to support you fix it. First, we will see what the sources and the different gearbox noises can be on Buick LaCrosse, and second, what are the solutions available to you.
Classical reverse Buick LaCrosse noises and some tips to protect your gearbox
Why does the reversing of my Buick LaCrosse make a different noise from my other speeds?
De facto, integrating all gears, bearings and pinions into a gearbox is a difficult process. The noise created by the reversing of your Buick LaCrosse is logical. It can be explained in a fairly simple way. Indeed, the gears used for conventional speeds (1st to 5th or 6th) are so-called “helical” gears (oblique gears) . The use of such a pinion makes the noise caused by the gears less important than with spur gears implemented for the reverse gear.
Tips to limit wear on your clutch and gearbox
- Don’t give a big boost:
Indeed, if you kick the throttle hard when you are in reverse or when you put the vehicle in the revs, you risk to burn your clutch or gnawing at the gearbox pinions. - Never reverse while the vehicle is in motion or vice versa:
Reversing the direction of operation of the gearbox during operation is a very bad plan. Indeed, the pressure you will apply on the gears will be monumental and you will produce a premature wear and tear of the gears. You can even break the gears of your gearbox at speed by doing so. It will therefore be completely normal if you perceive a reverse noise on your Buick LaCrosse if you shift gear under these conditions.
Several Buick LaCrosse reversing noises and their causes
Finally in this section, we will move on to what you are probably most interested in this page, to learn about the source of reversing noise on Buick LaCrosse. Here are the 3 typical noises you may be victim of.
I listen to a grinding noise when starting in reverse gear
If you experience a grinding noise when you start in reverse with your Buick LaCrosse, it may be the engine mounts that are tired. In fact, when the engine is in reverse gear, due to the pinions we saw above the vibrations produced by the gearbox are higher and it is therefore plausible that due to their wear the silentblocks no longer absorb the engine vibrations well. In this situation, do not hesitate to check this content page for more information about strut mount noises on Buick LaCrosse.
An increased reverse knocking noise on Buick LaCrosseX
If you are subject to a knocking noise when you are in reverse with your Buick LaCrosse and this noise tends to increase as you gain speed. It is plausible that you are confronting a serious trouble that needs to be fixed very fast before ruining your entire gearbox. Indeed, an intensifying rattling noise means that the gears are damaged. If they are, debris will spread to the rest of the box and damage other gears quickly. Take your vehicle to your auto mechanic quickly or check out this document about gearbox noise on Buick LaCrosse for more information.
I notice a noise when I go in reverse
Experiencing a noise when you shift into reverse is normal and linked to the gears and sprockets used in the gearbox. If, on the other hand, you have the feeling that your Buick LaCrosse reverse gear makes more noise than before, it is plausible that filings have been created and are moving around in it. It is therefore time to empty the box.
