The serpentine belt on a 2004 Toyota Corolla should typically be inspected every 60,000 to 100,000 miles, or as recommended in the owner’s manual. Signs that it may need replacement include visible cracks, fraying, or a squeaking noise from the engine. If you notice any of these symptoms or if the belt has reached the mileage threshold, it's wise to replace it to avoid potential engine damage. Regular inspection during routine maintenance can help ensure optimal performance.
Take it to the dealer
need diagram of routing for serpentine belt for 2003 toyota corolla
Change the belt
The 1998 Camry did not have a serpentine belt. Do you have a 1998 Corolla?
By removing the gear box , then reinstalling it and finally removing the old belt and replace by a new one.
Tighten it.
How to Change belt on 2005 corolla?
very carefully
I have a diagram based on my own Corolla with single belt, but I have nowhere to post it.
it is under the alternator
It does not have a timing belt. It has a chain that drives the camshaft. OR do you mean the serpentine belt on the outside of the engine that drives the alternator, A/C, water pump?
how to change the serpentine belt on 2003 Chevy express 2500