TV breakdown 2 days into trip
I am 2 days into a 6 week camping trip and my truck broke down on the freeway. The serpentine belt broke, and the engine overheated. That belt drives the water pump, generator , and power steering. ...
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You do not say what year Taco you have. EDIT: I see its a 2011 according to your second post. If it has an alternator decoupler built into the alternator pulley, they are prone to seizing up and this will cause belt whipping and breakage.
The purpose of a decoupler (or overrunning clutch on some vehicles) it to prevent the alternator from becoming a flywheel between power pulses and pushing on the belt, which causes the whipping.
I am sure they do, but I have never seen a serpentine belt fail, don't care how many cracks you see in the ribs, they generally just don't break.
To determine if you have a decoupler or ORC on your alternator, look at the front of the pulley. Usually they have a cap on them, instead of the typical exposed nut and end of shaft.
A good video to watch to see the comparison of non-decoupler vs decoupler vs ORC on the same engine.
https://youtu.be/4EXYP1CmL9Q
and a video to help identify the various types of pulleys.
https://youtu.be/U7MD85ogCEo
Charles
The purpose of a decoupler (or overrunning clutch on some vehicles) it to prevent the alternator from becoming a flywheel between power pulses and pushing on the belt, which causes the whipping.
I am sure they do, but I have never seen a serpentine belt fail, don't care how many cracks you see in the ribs, they generally just don't break.
To determine if you have a decoupler or ORC on your alternator, look at the front of the pulley. Usually they have a cap on them, instead of the typical exposed nut and end of shaft.
A good video to watch to see the comparison of non-decoupler vs decoupler vs ORC on the same engine.
https://youtu.be/4EXYP1CmL9Q
and a video to help identify the various types of pulleys.
https://youtu.be/U7MD85ogCEo
Charles
