Toyota Repair: V6 Tundra 2000 a loud humming at Idle, toyota technician, tundra 2000

Question
My just went through some repairs and it sounds like it did before the repairs. The repairs made to it was Knock Sensors both replaced, a fuel injector, and one ignition coil. It sounded great before the coil was replaced but wouldn't run right at all. Now that those have been replaced it has a loud hum at low idle. what do you think it might be?

Answer
Cole,
Sounds like they took you to the cleaners !
All those things don't go bad at once !
Toyotas don't have fuel injector or coil problems!
2 Knock sensors don't go bad at the same time.

I cannot even guess where the sound is coming from via emails.
You need to take it to a good Toyota technician (not the place where you had it repaired), keep trying.
It could be a alternator, water pump, or belt, etc. A good mechanic
will use a stethoscope to pinpoint the issue.

Good luck, let me know what they find out.