Keeping an eye on your car all the time is the best thing you can do. Although classic maintenance is designed to keep your GMC Yukon running smoothly over time, some unpredicted breakdowns can add heavily to your annual motor vehicle budget. In this article we’re going to look at your sense of smell, and the clues it can give you about a possible malfunction, that’s why our team has created this article to help you in case you detect a burnt plastic smell caused by your GMC Yukon . To help you check that it is nothing severe, first we will detail the different things that can produce a burnt plastic smell on your motor vehicle, then, in a second step, how to discover the cause of this burnt plastic smell on your GMC Yukon? .

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The different possible origins and risks of smell of burnt plastic on a GMC Yukon

So we start our article with the different possible origins of burnt plastic smell on a GMC Yukon . Generally, noticing a plastic or rubber smell is hardly ever a good sign. In fact, modern vehicles are full of it and it could be the sign of a major malfunction. Down below we will talk about the different possible origins of burnt plastic smell:

  • Transmission oil: This is the main possible origin of such an odor. In fact, the objective of gear or transmission oil is to lubricate the different elements of your gearbox so that all the gears and pinions are not damaged, it also has a second objective as a temperature regulator. Nevertheless, in the long run, the oil will lose its performance and will not lubricate the auto parts and control the temperature as well, which will bring about the oil to overheat and thus give off that burnt plastic smell on your GMC Yukon. You risk pre-wearing your gearbox if you don’t take care of it.
  • The accessory belt: Although rarer, it is possible with wear and tear that your belt, which is specifically done of rubber, will deteriorate and no longer rotate completely on its axis. With the friction that this will bring about the plastic will heat up and burn out, this reaction will produce a strong smell of burnt plastic or rubber in the engine block of your GMC Yukon.
  • Defective hose wear: This circumstance arises specifically on GMC Yukon that are starting to get a few years old or that have stayed a long time without rolling. In fact, storing your vehicle contrary to what you might believe will bring about the plastic auto parts to wear out more quickly. Hoses are the first to be troubled by this phenomenon. The rubber will disintegrate little by little and with the rise in heat of the fluid that circulates in it, it might melt. The risk of this problem is the breakage of the accessory belt.
  • A body component: Less basic, specifically present on GMC Yukon’s that have suffered a small shock. Following a front or rear impact, wheel arches, bumpers or other plastic body auto parts that might have been bent might rub against one of your wheels and give off that burnt plastic smell. This may also pre-wear out your tyres.

How to identify where the smell of burning plastic originates from on a GMC Yukon?

And now, to finish our article, we’re going to try to help you discover the origin of the smell of burnt plastic on your GMC Yukon . Now that you know the different possible roots of this smell, we’ll just have to do some checks to eliminate the tracks that don’t concern you and solve your issue quickly. If your GMC Yukon smells hot, don’t think twice to read our article on this topic.

  • Transmission oil: Nothing could be simpler, open your transmission oil cap (when cold) and check that your oil is reddish in colour and fluid enough. If you discover debris inside, and it is darker, it’s time to change it. Do not think twice to consult our article to identify how to change the gearbox oil on a GMC Yukon.
  • Accessory Belt: Visually check that your accessory belt is not in poor condition, it might also produce a whistling sound if it is in poor condition. Do not think twice to change it.
  • Hoses: For hoses, you will need to visually check all your hoses to discover if any are frayed or melted. If this is the circumstance, change them.
  • Body auto parts: Last but not least, the last element that can bring about the smell of plastic or burnt rubber on your GMC Yukon, a body component, check all wheel arches, that no component rubs against

    To discover more tips on the GMC Yukon, take a look at the GMC Yukon category.