Serpentine belt I'm unable to release the tension on the serpentine belt of my toyota corolla 2003

The belt uses an automatic hydraulic tensioner to keep it tight. I believe a 19mm socket is used to rotate the tensioner to relieve tension on the belt. You hold be able to see it on the top of the engine just to the left of the upper motor mount as your looking down from the passenger side.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Does the 2010 corolla s have a tensioner to release the serpentine belt?? How bout a jack screw??

• Here is the serpentine diagram for a 1999 Toyota Corolla with and without AC.

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Regards, Tony

Draw a picture of the belt and pulleys before you remove it, this saves nightmares of trying to re fit the new one.
Locate the belt tensioner, half way down the engine toward the rear. It has a small shock absorber like component attached to it. Once you locate this, look closely down there and on the bracket that holds this component and the pulley, you will see a hex shaped part of the bracket, This is shaped for you to put a socket or spanner on so you can use leverage to move the tension pulley away from the belt. One you do this flick the belt off. Release the tension and fit the new belt, leaving the tension pulley for last. This is easiest as the pulley does not have a lip on it that you need to stretch the belt over. Now move the pulley with the spanner or socket & bar one again and flick the belt over.

The Belt Diagram should be on the underside of your hood, however they have a way of disappearing.

If it is not there:
Click on the following free direct Link. It has the correct Serpentine Belt Diagrams for your 2001 Toyota Corolla 1.8L (4-Cylinder) Engine and Engine Options (AC/No AC etc.). Included are Instructional and Directional Diagrams for your use.

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

http://www.2carpros.com/car_repair_information/year/2001/make/toyota/model/corolla/2001_toyota_corolla_drive_belt_routing_diagram.htm "HOW TO":
Standard Rules to Removal the Serpentine Belt with an Automatic Tensioner:
1. Find the Tensioner(s). (See Diagrams on Link)
2. Using a Serpentine Belt Tensioner Tool, Or Wrench OR Ratchet, Rotate/Move the Tensioner USING THE AVAILABLE NUT (on the Pulley or Arm Base) OR the OPENING (3/8ths or 1/2 inch square opening) rotating the Tensioner Pulley/Arm - moving it away from contact with the belt and towards the area where the belt is not in contact with the Tensioner Pulley. The Tensioner is spring loaded, and is hard to rotate/move.
3. Remove the loosened belt off one of the other more easily accessed Pulleys.
4. DO NOT quickly release the Tensioner, but gently allow the Tensioner to rest in its closed position.

Standard Rules for Installing the Serpentine Belt with an Automatic Tensioner:
a. Pick a Pulley that is most easily accessed. This will usually be on top. This will be the last Pulley that the belt will go on.
b. Using the Diagram: Install the new Serpentine Belt on the remainder of the Pulleys....over, under, left right.
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.
d. Using your other hand - Pull the Belt up and over the Last remaining Pulley.
e. Before releasing the pressure on the Tensioner, visually inspect the remainder Pulleys and the Belts' Positioning on them.

Click on the following free direct Link. It has the correct Serpentine/Drive Belt Diagrams for your 2003 Toyota Camry with either the 2.4L 4-Cylinder or 3.0L V6 Engine.

http://www.2carpros.com/car_repair_information/year/2003/make/toyota/model/camry/2003_toyota_camry_drive_belt_routing_diagram.htm

"HOW TO":
Standard Rules to Removal the Serpentine Belt with an Automatic Tensioner:
1. Find the Tensioner(s). (See Diagrams on Link)
2. Using a Serpentine Belt Tensioner Tool, Or Wrench OR Ratchet, Rotate/Move the Tensioner USING THE AVAILABLE NUT (on the Pulley or Arm Base) OR the OPENING (3/8ths or 1/2 inch square opening) rotating the Tensioner Pulley/Arm - moving it away from contact with the belt and towards the area where the belt is not in contact with the Tensioner Pulley. The Tensioner is spring loaded, and is hard to rotate/move.
3. Remove the loosened belt off one of the other more easily accessed Pulleys.
4. DO NOT quickly release the Tensioner, but gently allow the Tensioner to rest in its closed position.

Standard Rules for Installing the Serpentine Belt with an Automatic Tensioner:
a. Pick a Pulley that is most easily accessed. This will usually be on top. This will be the last Pulley that the belt will go on.
b. Using the Diagram: Install the new Serpentine Belt on the remainder of the Pulleys....over, under, left right.
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.
d. Using your other hand - Pull the Belt up and over the Last remaining Pulley.
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 questions. Feel Free to contact me at FixYa.com!

the routing for the belt should be on a sticker under the hood, it is not complicated, you need a few common hand tools, you release the belt tentionser, remove old belt and install new one

Crank the tensioner to get some slack in the belt and slide it off the uppermost, most easily accessible pulley. Remove the old belt. Route the new belt in accordance with the belt routing diagram and crank the tensioner the same direction as before to begin getting the belt over the uppermost pulley. Slide a screwdriver under the belt and over the pulley to leverage the new belt on. Release the tensioner and check for belt tautness. If the belt is loose, you've either purchased the wrong size or have misrouted the serpentine belt.

i use a 1/2 inch leverage bar .there is a hole in the tension pully(usually the top pully) put the end of the bar in the slot and pull. you will have to hold the tension on it with the bar while you remove the belt.