How Your Exhaust System Can Warn of Engine Trouble

Something that many of us learn early on when we first start to understand the vehicles we drive all the time is that practically every part of a vehicle has some influence over everything else. The reason experts will insist that you take care of car problems quickly is because of the secondhand effects they can have on the rest of the working parts of your vehicle. You’ll rarely run into a problem that won’t start to harm something else if you don’t take care of it as soon as possible.

On the other hand, this can actually work to our advantage sometimes. Some issues that we might be able to easily see or hear could be the result of an issue that’s a little harder to spot. Rather than let these invisible issues fester into a total breakdown, our vehicles will let us know in other ways that something isn’t right.

A good example of this is using your vehicle’s exhaust system as a way to measure the condition of your more internal components. In some cases, engines aren’t easy to get to or you might have issues seeing the potential problem simply by opening the hood. This article will go into how your exhaust system can warn of engine trouble that you won’t want to ignore. Writing these incidents off as flukes could lead to some serious financial woes in the future unless you decide to deal with the root of the problem quickly.

Change in Smoke Color

Perhaps the most direct way that your exhaust system will warn you about engine trouble is a change in the color of what spews out the back of your truck. Powerful engines can certainly cause a few puffs of dark exhaust, but it’s important that you understand how that exhaust can change, what it might look like when it does, and what you need to do to stop it from happening again. There are three major kinds of smoke to be concerned with: thick black smoke, blue smoke, and puffy white smoke. We’ll go through all three so you can always know if something is off in your engine and what you need to do to alleviate the issue.

Black Smoke

We’re not just talking about your typical dark smoke color here. A cause for alarm is when the smoke from your exhaust turns very thick and extremely dark black. There’s really only one probable cause for this issue and it has to do with how much fuel your engine uses during combustion.

When your engine uses too much fuel to compensate for something else, such as a clogged air filter, the result is this inky black smoke coming out of your tailpipe. Besides the obvious issue that your engine is using more fuel than it needs—thus increasing your fuel costs in the long run—it also means your air-to-fuel ratio is completely off. This is a major issue for truck owners who need the power and efficiency that comes from a precise air-to-fuel ratio.

Blue Smoke

As odd as it may sound, the exhaust system can actually produce smoke tinged with a bluish hue under certain conditions. What you need to know about this kind of smoke is that it won’t be a bright, vibrant blue, but instead a dark and hazy blue. Blue smoke is a clear indicator that something has gone very wrong in your engine, and it has started to actually burn the oil that allows it to function correctly.

Besides being extremely unhealthy to breathe and a major hazard to the atmosphere, this blue smoke could mean that your engine no longer has the necessary oil it needs to continue functioning safely. Engine oil makes sure that moving parts have the right lubrication in order to function smoothly. If you’re burning oil, it could mean that those parts will start to show wear and tear much sooner.

White Smoke

Big, puffy clouds of white smoke coming from your exhaust system are also an indicator that your engine burned something that it shouldn’t have. This is one of the easiest issues to spot when it comes to your exhaust system as even healthy engines don’t produce white smoke.

In this case, the white smoke is the result of your engine burning coolant before expelling it. Obviously, your engine should never burn coolant. This is a clear indicator that you likely have a coolant leak somewhere in your engine. Letting this problem linger for too long could quickly cause your engine to overheat, which will only cause even more headaches and expensive repairs later down the line.

Increased Exhaust Volume

For many diesel truck owners, having a loud and growling engine is a benefit of their vehicle, not something to reduce or get rid of. However, there is a real difference between a loud engine noise that you want and one that indicates something isn’t right. Specifically, you want to pay attention to the noise that your truck makes as you accelerate.

Overly loud noises, or something that sounds like a rattling or thumping noise, could be an indication that something in your engine isn’t as it should be. Usually, you can attribute this to not having enough oil in your engine, but there are several things it could be. You also want to ensure that this noise isn’t caused by a simple muffler issue, such as a hole or too much corrosion.

Unpleasant Smells

This isn’t to say that the smell of normal exhaust is something pleasant, but if it starts to really take a turn for the rotten, you may want to pop open the hood and have a look around. Your exhaust system can warn you of a serious issue in your engine if you start to smell something terrible. In this case, you want to be aware of any overly sulfuric smells, which we usually associate with rotten eggs. This issue almost always means that something has gone wrong with your engine’s catalytic converter, something you want to address right away if possible.

Keeping an eye on your exhaust system is crucial to your engine’s health. As you know, your exhaust is not just for spewing out fumes, it’s a great indicator of how the rest of your engine is functioning. If you need engine parts or want some new Dodge Ram exhaust parts to improve your truck’s capabilities, Norcal Diesel Performance has a wide selection of parts that can put your engine back into the best shape it’s ever been.

How Your Exhaust System Can Warn of Engine Trouble

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