It is never pleasant 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 notice a reversing gear noise that persists on your GMC Acadia? Any gearbox issue can be serious, but before making sure, it is better to do a few investigations. Our team has created this document to support you deal with it. First, we will see what the origins and the different gearbox noises can be on GMC Acadia, and second, what are the solutions available to you.
Classical reverse GMC Acadia noises and some tips to maintain your gearbox
Why does the reversing of my GMC Acadia make a different noise from my other speeds?
De facto, integrating all gears, bearings and pinions into a gearbox is a difficult exercise. The noise made by the reversing of your GMC Acadia 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 chosen for the reverse gear.
Tips to reduce wear on your clutch and gearbox
- Don’t give a big boost:
In fact, 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 practice. Indeed, the pressure you will exert on the gears will be monumental and you will develop 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 typical if you perceive a reverse noise on your GMC Acadia if you shift gear under these conditions.
Diverse GMC Acadia reversing noises and their causes
Finally in this section, we will move on to what you are probably most curious about in this content, to find out about the cause of reversing noise on GMC Acadia. Here are the 3 typical noises you may be victim of.
I acknowledge a grinding noise when starting in reverse gear
If you experience a grinding noise when you start in reverse with your GMC Acadia, 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 conceivable 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 GMC Acadia.
An increased reverse knocking noise on GMC AcadiaX
If you are subject to a knocking noise when you are in reverse with your GMC Acadia and this noise tends to amplify as you gain speed. It is conceivable that you are confronting a serious issue that needs to be resolved fairly quickly before wrecking your entire gearbox. Indeed, an intensifying rattling noise means that the gears are damaged. If they are, debris will disperse to the rest of the box and damage other gears before long. Take your vehicle to your technician quickly or browse this document about gearbox noise on GMC Acadia for more information.
I listen to 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 GMC Acadia reverse gear makes more noise than before, it is conceivable that filings have been created and are moving around in it. It is therefore time to empty the box.
