toyota vvt-i engine rumbling sound at 3k rpm (innova gas m/t)

[spyghost]

i don't know if its just me, but i just noticed that when accelerating and upon reaching 3k rpm, there is a very noticeable rumbling sound. it disappears above 3k rpm.

its always rumbling at 3k rpm. bone stock everything.

sound is hard to describe, but its like a grrrr sound somewhere in 3k at any gear.

[desert fox]

baka mga support mo?:rock:

[spyghost]

baka mga support mo?:rock:

supports dying so early... hmmm... darn

[kristine123]

baka yung pulley mo or the tensioner sir?

[vinj]

Does it also occur when the car is not in gear (stationary then you rev it)? Can you isolate where it is coming from? Sometimes it can be something as simple as a loose screw, bracket or part in the engine bay that vibrates at a certain rpm.

[spyghost]

Does it also occur when the car is not in gear (stationary then you rev it)? Can you isolate where it is coming from? Sometimes it can be something as simple as a loose screw, bracket or part in the engine bay that vibrates at a certain rpm.

this is also what i've been thinking of (possibility). i can't isolate to where its coming from, but its definitely from the engine itself. it gets along with the rev so i can say its the whole engine.

stationary (no load), i don't hear it, but when in gear (any gear), the drastic change in engine sound is very noticeable. if this were vvti-l, i would say its the "L", or the lift kicking in, but its not. i'm expecting a linear change in sound since its just vvti.

i don't hear this drastic change in sound in a 1.3 vvti (vios e). i doubt that its just because this a 2.0l vvti.