Serpentine Belt Tensioner Replacement

Step by step repair guide on how to replace a serpentine belt tensioner. This article pertains to all non electric cars.

Difficulty Scale: 4 of 10

Tools and Supplies Needed

  • Large pry bar
  • Flashlight
  • Infrared laser temperature reader
  • Protective eyewear and gloves
Begin with the vehicle on level ground, in park with he emergency brake set.


Step 1 - To begin, some front wheel drive vehicles need to have the engine supported before tensioner removal. Rear wheel drive vehicles can omit step 1 through 4.

Engine Support

Step 2 - Once the engine is safely supported, remove engine mount retainer nuts.

Removing Engine Mount Nuts

Step 3 - Next, removing the main engine mount bolt, the engine will become lose during this step.

Removing Engine Mount Bolt


Written by
Co-Founder and CEO of
35 years in the automotive repair field, ASE Master Technician, Advanced Electrical and Mechanical Theory.


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Article first published (Updated 2013-09-11)