2005 Toyota Corolla Serpentine Belt Replacement

This was a really simple job, changing the serpentine belt in the 2005 Toyota Corolla!  All you need to do the job is a new belt, a breaker bar, and a 19MM socket.  Being able to manipulate large hands around tight quarters may be required as well.  This is where I usually end up scraping and cutting up my hands since I have to shove them down into the engine bay to route the belt properly.

This car has over 200k miles on it and who knows how long that belt has been on there.  I usually try to replace the belt every 100k but this is not my car so I’m not sure when the last time this was done.  The belt definitely looked worn out and was in need of replacing, which is why I ended up doing this job.  It was not a big deal since I was also working on their Infiniti as shown in this post.

A new serpentine belt was purchased from Amazon by the owners of the car and it went on without an issue.  The replacement procedures are listed below.

At first I thought that this was old school and that I was going to have to loosen the alternator bolts to get the belt off since it took me a minute to figure out where the tensioner was for the belt.  Once I was able to find it, it was just a matter of getting the socket on the bolt and pulling on the breaker bar.

This is the tensioner belt.

This is the tensioner belt.

There is a little bit of an issue with sliding a socket with a breaker bar attached into the small area where you need to put the socket but I was able to squeeze the bar in there and get the socket on the bolt without worrying about the bolt getting stripped.

When you pull the breaker bar towards the front of the motor, you will loosen the tension on the bolt and that will allow you to remove the old belt.

Breaker Bar on Belt

Breaker Bar on Belt

Take note of how the belt is routed so that you can put the new one on.  If you forget, there is an image below!

05 corolla pulley diagram

To put the new belt on, I snaked the belt around all the hard to reach pulleys first.  I routed the ones all the way in the back of the engine bay, around crank pulley, and around the tensioners.  Once the belt was routed properly, I got it as close as I could to the alternator pulley.  When it was close, I pulled on the breaker bar (which I never took off the bolt) and loosened the tension on the tensioner.  When this was done, I was able to slide the belt over the alternator pulley and complete the job.

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