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2010 Jeep Patriot Serpentine Belt Diagram

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One of the most common issues with a vehicle is a bad serpentine belt.  If you suspect that your Jeep Patriot has this problem, we'll give you the common symptoms below, as well as how to replace it.

The good news is that serpentine belts are cheap, and in the grand scheme of things, relatively easy to replace.  The sound that a bad serpentine belt makes is a squealing sound.  It has a higher pitch than an engine rattling.

Bad Serpentine Belt Jeep Patriot

Bad Serpentine Belt Symptoms:  Jeep Patriot

Here are the most common symptoms of a bad serpentine belt in the Jeep Patriot:

Squealing Belt

Often, the first sign of a bad serpentine belt in your Patriot is squealing.  The squealing should match the engine RPM.  That is to say, that when you rev the engine, the squeal changes pitch accordingly.

It might also go away entirely if you rev your engine a few times.  This happens because the serpentine belt gets heat in it and is able to grab ahold of the pulleys.  At this point it is no longer slipping.  It's a matter of time before revving the engine no longer corrects the problem.

Jeep Patriot Bad Serpentine Belt Diagnosis
A Typical Serpentine Belt

Visible Wear and Cracking on the Belt

As your serpentine belt ages, it will begin to show visible signs of wear.  These belts are not designed to last the life of an engine.  A bad serpentine belt may have:

  • Glazing
  • Cracks
  • Smooth Surface
  • Missing Pieces
  • Uneven Wear
  • Missing/Damaged Ribs

Any of these items are enough to replace the belt.

Engine Accessories Not Working

The serpentine belt powers your engine accessories, such as the power steering pump and air conditioning compressor.  If these accessories are not working, that's an indication that the serpentine belt is shot or missing entirely.  Get a new belt immediately.

Overheating

The serpentine belt is responsible for turning the water pump in your Patriot.  If it fails, water can no longer circulate throughout the engine.  You also shouldn't have power steering (although some vehicles now have electric power steering so be careful).

If the belt is off all the way, or the engine is overheating, do not drive it somewhere to have it looked at.  Overheating the engine and blowing a head gasket will cost way more than a new serpentine belt.

Jeep Patriot Serpentine Belt Replacement

Replacing a serpentine belt is a straightforward process.  Your Patriot uses a tensioner to keep the serpentine belt tight.

The first thing you are going to need to do is find the tensioner and apply force to it in order to loosen the serpentine belt.  Once you've applied force you can pull the belt off of a pulley.  Now, let off the tensioner slowly.

We recommend taking a picture of the belt route, and making sure that you have a diagram of the route before taking the belt off.  The last thing you want is to not remember how to get the belt back on.  You should see a sticker under your Patriot's hood with serpentine belt route information.

Here's a great video from Scotty Kilmer on how to change a serpentine belt:

Conclusion:  Bad Serpentine Belt Diagnosis – Patriot

Serpentine belt replacement is something that any shade tree mechanic can do with very few tools.  So if you have reason to believe that a bad serpentine belt is causing your Jeep Patriot's engine to squeal, replacing it might be exactly what you need to do.

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

Posted by: francisfrancisciancioe0271879.blogspot.com

Source: https://www.700r4transmissionhq.com/jeep-patriot-bad-serpentine-belt/

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