One of the most usual issues with a auto is a bad serpentine belt. If you doubt that her Mitsubishi Montero has actually this problem, we’ll give you the common symptoms below, as well as how to change it.

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The good news is the serpentine belts are cheap, and also in the grand scheme of things, relatively easy come replace. The sound the a poor serpentine belt makes is a squealing sound. It has actually a greater pitch than an engine rattling.


Bad Serpentine Belt Symptoms: Mitsubishi Montero

Here are the most usual symptoms of a negative serpentine belt in the Mitsubishi Montero:

Squealing Belt

Often, the an initial sign of a negative serpentine belt in her Montero is squealing. The squealing should complement the engine RPM. That is to say, that as soon as you rev the engine, the squeal changes pitch accordingly.

It might likewise go away entirely if you rev her engine a couple of times. This happens due to the fact that the serpentine belt gets heat in it and also is able come grab ahold of the pulleys. In ~ this suggest it is no longer slipping. It’s a issue of time before revving the engine no much longer corrects the problem.

A typical Serpentine Belt

Visible Wear and Cracking top top the Belt

As her serpentine belt ages, it will start to present visible signs of wear. This belts are not designed to last the life of one engine. A negative serpentine belt might have:

Glazing crack Smooth Surface absent Pieces Uneven wear Missing/Damaged Ribs

Any of these items are sufficient to change the belt.

Engine Accessories not Working

The serpentine belt powers her engine accessories, such as the power steering pump and air conditioning compressor. If this accessories are not working, that’s one indication that the serpentine belt is shoot or lacking entirely. Obtain a new belt immediately.


The serpentine belt is responsible for turning the water pump in your Montero. If it fails, water deserve to no much longer circulate throughout the engine. You additionally shouldn’t have actually power steering (although part vehicles now have electrical power steering so be careful).

If the belt is off all the way, or the engine is overheating, do not journey it what to have actually it looked at. Overheating the engine and also blowing a head gasket will certainly cost method more than a new serpentine belt.

Mitsubishi Montero Serpentine Belt Replacement

Replacing a serpentine belt is a simple process. Her Montero supplies a tensioner to save the serpentine belt tight.

The very first thing you space going to need to do is find the tensioner and apply force to the in stimulate to ease the serpentine belt. Once you’ve applied force you can pull the belt turn off of a pulley. Now, let off the tensioner slowly.

We recommend taking a snapshot of the belt route, and making certain that you have actually a diagram of the route before taking the belt off. The last point you want is to no remember how to acquire the belt back on. You need to see a sticker under her Montero’s hood v serpentine belt route information.

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Here’s a good video native Scotty Kilmer on exactly how to adjust a serpentine belt:

Conclusion: negative Serpentine Belt Diagnosis – Montero

Serpentine belt replacement is other that any shade tree mechanic can do with very few tools. For this reason if you have actually reason to believe that a bad serpentine belt is bring about your Mitsubishi Montero’s engine come squeal, replacing it might be specifically what you have to do.

If there is anything that you would choose to add, please leave a comment below. Great luck!