This is normal? - Toyota Corolla, 1.6L, 2004
At speeds from 80 to 100 km / h at 2500 rpm, there is too loud a rumble in the engine. This is exactly the hum, i.e. the engine starts humming with low bass.
Is this normal or kagbe? ..
When you turn the gas, everything is normal.
The sound appears precisely at high speed and comes from under the hood.
resonance somewhere ... perhaps the glushak clings to the protection or something like that ... this current should not be current at speed, but just when gas
I had something like that) but only when you press on the floor at 1000-1500 rpm, a bass sound began to emanate from under the hood after 3000 rpm, it disappeared, then I realized that the new air filter was not very tight (the gap was about 1mm) and vibrated with a funny sound)) even a little pleasant))))