Most likely an obstruction in the exhaust system. Often that is a plugged catalytic converter.
It is quiet obvious when you have a turbo because when you accelerate you hear a whistling sound. The turbo noise is unmistakable.
The Camry could have a vacuum leak. If there is a vacuum leak, then there can be a whistling sound until the vacuum system is full of air.
There It Go (The Whistling Song) by Julez Santana
whistling
when my bike stand outside at 60°c a whistling sound comes from fuel tank cap. could you tell the reason?
No, whistling is not an example of onomatopoeia. Onomatopoeia refers to words that sound like the noises they describe, such as "buzz" or "bang." Whistling is the actual sound produced by blowing air through pursed lips.
Stridor
wheezing
A siffleur is an animal that make a whistling sound. It comes from the French word siffler which means whistle.
The whistling sound is the turbochargers at work.. The turbines inside the turbos creates the whistling sound as the exhaust gasses pass by each blade of the hot turbine and the cold turbine blades drive air into the engine.
It can very well be a symptom of asthma.
Whistling, skirling, restless, marauders