Question about 2002 Chevrolet Tahoe

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A/c trouble I have a 2002 chevy Tahoe w/ rear a/c the problem I am having is when I turn either the defroster on or the a/c the belt tensioner on the compressor starts jumping violently I have replaced the tensioner and added oil to the system ????

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Hello, it sounds as if you have a problem with your tensioner jumping violently. When the defrost is on it uses the ac compressor that is why the belt jumps then to, but it sounds like you are going to be needing a compressor soon. It has a piston that is hanging up at a certain point and thats why it is jumping. It will break a brand new belt when it locks up,when that happens. Please rate my answer, thank you.

Posted on Feb 23, 2009

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I have a 2002 tahoe and just bought a compressor kit and the orifice tube that came with the kit is a hair too larg for the hole. i even bought a new one from a different parts store and same thing please help

Posted on Jul 02, 2011

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My sincere apologies for the severly delayed response.
I am personally going back to answer your unanswered questions.

I do not know if you still need this information, however I am answering it in case you still do.


Click on the following direct Link. It has the Serpentine Belt Diagram for the 2002 Chevy Tahoe for your specific engine and options (AC/No AC etc.). It has other additonal diagrams for your future use. It also has some diagrams on how to rotate/move the Tensioner Pulley/Arm to loosen and remove the Belt.

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Standard Rules for Installing the Serpentine Belt:
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c. Using a Serpentine Belt Tensioner Tool or Wrench or Ratchet Tool: Rotate/Move the Tensioner Pulley/Arm "away" from Belt contact area on the Tensioner. This spring is pretty hard and with a new belt, it will be even harder to install. Rotate/Move this to as-close to the maximum allowed inorder to have enough slack in the belt to get it up and over the last pulley.
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e. Before releasing the pressure on the Tensioner, visually inspect the remainder Pulleys and the Belts' Positioning on them.


Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/2002/make/chevrolet/model/tahoe/2002_chevrolet_tahoe_drive_belt_routing_diagram.htm

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