The alternator acts as the belt tensioner.
It looks the same as any other color toyota sienna but in red.
The 2014 Toyota Sienna is equipped with a timing chain, not a timing belt. Timing chains are generally more durable and do not require regular replacement like timing belts. This means that the timing chain in the Sienna is designed to last for the life of the engine under normal driving conditions.
Answer: Sounds like you may have a loose belt.
5 30w of any kind of oil you like. This is from my 2001 Toyota Sienna Le manual book
The system that the belt runs on ,is called a serpentine system,it's a one belt set-up ,and they are self adjusted by a tensioner,sounds like...1- Your tensioner is seized,or ..2-your belt is streched..Sometimes the tensioner can be free'd by taking it of and working it in with lubrication,but if not,get a new tensioner and a belt, hope it helps.
It sounds like it is working fine except in reverse, maybe reversing the wires will do the trick.
what's the question? how to do it? specific to corolla or just serpentine belt in general? release tension on belt by: -put a socket/breaker bar or ratched on the tensioner pulley bolt and use it to relieve tension on the belt -slide belt off tensioner pulley. replace with new belt in same pattern across all pulleys and again relieve tension on the tensioner puller to slide the new belt back on --you may need to remove the bolt on the tensioner closest to the pulley (i don't know just judging by the picture i found) ---if you don't know what the tensioner looks like look up the part on autozone's website for a picture you can match on your car
The 2000 Toyota Sienna typically has three main belts: the serpentine belt, which drives multiple accessories like the alternator and power steering pump; the timing belt, which synchronizes the engine's camshaft and crankshaft; and the air conditioning compressor belt, if applicable. It's important to check the vehicle's specific configuration, as some models may vary slightly. Regular maintenance is essential to ensure these belts are in good condition.
Sounds like a loose accessory belt or a bad belt tensioner.
If the belt is old it may be stretched to far for the tensioner to pull tight but If the belt is new then it could either be wrong belt or the tensioner spring is faulty. Be sure the belt is on properly if it isn't on one of the pulleys it won't tighten, also be sure you are putting it on the tensioner(you have to pull tensioner using a large wrench or breaker bar and slide belt on to it last,after other pulleys) I know it may sound like common sence but I've had friends who tried putting it on the tensioner first attempting to use the belt to move the tensioner.
The cost to replace the timing belt for a 2001 Toyota Sienna typically ranges from $400 to $800, depending on the mechanic and location. This price often includes parts and labor, but additional costs may arise if other components, like the water pump, are also replaced during the service. It's advisable to get quotes from different mechanics to ensure a fair price.
The tensioner is automatic, no adjustment needed. If you threw the serpentine belt then look for a misaligned pulley or worn tensioner wheel. If you need to move the tensioner to get the belt back on then look for a square hole in the tensioner arm. Use a breaker bar with the appropriate sized square (probably 3/4") to move the arm to get the belt back on. probably tensioner is bad like a failed bearing