Put a wrench on the tensioner. Push it slack. Replace the belt while holding the tensioner in the slack position.
Right on the very front of the motor.
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I have a 2002 Trailblazer and was told we do not have a fuel filter. You can verify this by looking at your maintenance manual or better yet (really!) call a Chevy Service department.
Chevrolet TrailBlazer was created in 2002.
Where is the location of the cooling fan sensor on a 2002 Chevy Trailblazer? Also what is the 800 number for Chevy?
The tensioner/tensioner pulley is located on the passenger side of the motor and hold the tension on the serpentine belt. In order to change the serpentine belt you must relax the tension with a breaker bar or equivalent. We have more info, including diagrams at our enthusiast forum, at www.trailvoy.com
The 2002 TrailBlazer with the 4.2 Inline 6 uses a serpentine belt. The tensioner pulley and arm can be "relaxed" using a breaker bar or a wrench on the tensioner pulley to make is slack. www.trailvoy.com All the answers are in our enthusiasts forum!
Follow this link. http://www.autopartsdirecttoyou.info/?p=3 it shows details for a Ford. But it will also get you thru a Trailblazer.
The serpentine belt is replaced by relaxing the tensioner arm using a big wrench or screwdriver. Then pop the belt off and slide the new one on. www.trailvoy.com Trailblazer enthusiasts with all the answers!