2005 Honda Accord Serpentine Belt Diagram
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Here is a guide that will walk you through the replacement and instructions below to show you how on your car on both 4 and 6 cylinder engines.
https://www.2carpros.com/articles/replace-serpentine-belt
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

No, external drive belts are only replaced as and when necessary but then they would start emitting squeeking noise after a certain period of use. Things to check for are deterioration of the quality of the belt rubber ( cracks, tears, etc)
Replacement is not difficult but proper adjustment is important for durability and won't cause premature wear to driven components.


Special Tools Required
Belt tension release tool Snap-on YA9317 or equivalent, commercially available
1. Move the auto-tensioner (A) with the belt tension release tool to relieve tension from the drive belt (B), and remove the drive belt.
2. Install the new belt in the reverse order of removal.
How much does it cost to replace a serpintine belt and a belt tentioner? And what does it mean when your car won't always turn over or start up but all the lights stay on and the radio it only happens every so often?
If the starter is not cranking with the dash lights staying on, it could be a faulty starter motor, security system or faulty ignition switch. Check if starter solenoid wire is secure. Is the security light ( green key symbol ) blinking at this time?
The labor time for replacing the drive belt tensioner is 0.7 hour.
$ 19.88 = Serpentine Belt
The price for drive belt tensioner is not available in our database.
We would be happy to help. However, I have a favor to ask. I need you to start a new post with your model year, make, model, and engine size so we can get the right information for you.
We ask that you start a new post because of the difference in model years from the original post. We try to keep it specific to one type of vehicle so that it is helpful to others. I hope you understand.
Here is the link to start a new post. Copy and paste your question and someone will help. Please make sure to include the engine size.
https://www.2carpros.com/questions/new
Again, I hope you understand.
Take care,
Joe
Suggested Repair
Relieve tension with a belt tension release tool on the auto-tensioner, remove the drive belt, and install the new belt in reverse order using the correct routing diagram for the engine. Inspect for cracks, tears, glazing, or squealing and replace only when worn; set tension correctly so driven components are not damaged.
Conversation Summary
Several Honda Accord owners asked for serpentine/drive belt routing diagrams and replacement steps across different years and 4- and 6-cylinder engines. Experts posted routing diagrams and said to use a belt tension release tool to move the auto-tensioner, remove the belt, and install the new belt in reverse order. They also said external drive belts are replaced when worn rather than on a fixed interval, checking for cracks, tears, and squealing, and that correct adjustment matters. Related replies covered tensioner labor time, a missing belt after a pop and warning lights, and a request to start a new post for a different model year.




