My vehicle turns on and drives great but sometimes when I turn it on I hear a humming noise that shouldn't be there. Also, when I get on the highway and get on the gas I notice the humming noise again. It almost sounds like a computer humming if that makes sense. When I let go of the gas, it doesnt do it. Only when I accelerate. Any ideas?
Humming noise from engine during start up and acceleration?! HELP! (1 Viewer)
- Thread starter pcruz1
- Start date
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Do you think you could possibly get a good audio or video clip of it making the noise? That could help immensely.
I always start with the easy/free methods. My optimistic approach would be to pull the air filter and inspect. These are big engines and need a lot of air. if you have an old filter or one with a ton of debris in there it'll create some wacky intake notes.
Secondary air injection pump
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GX470 Air Injection failure
My wife started her GX470 yesterday morning and got this big whirring sound. Didn’t do it again until she left the office f R lunch. Was unable to repeat until this morning. I recorded it but was able to find an identical issue: Secondary Air Injection Pump Failure on V8's! Important! - Toyota...
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