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john, The Car Guy
Category: Toyota
Satisfied Customers: 16286
Experience:  ase tech over 15 years in the field
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Whining noise when started- just started- alternator gauge

Customer Question

Whining noise when started- just started- alternator gauge down from center range reading - 4 amps
JA: Have you checked all the fuses? Do you have a wiring diagram?
Customer: no
JA: What is the model/year of your Toyota?
Customer: 2006 toyota tundra SR-5 - v- 6 engine
JA: Are you fixing your Tundra yourself? What have you tried so far?
Customer: nothing so far- just started tonight
JA: Anything else you want the mechanic to know before I connect you?
Customer: - I have had no problems or work done to the vehicle
Submitted: 9 months ago.
Category: Toyota
Expert:  john replied 9 months ago.

is the noise coming from the alternator?

Customer: replied 9 months ago.
it appears so
Expert:  john replied 9 months ago.

sounds like alternator replacement is the answer... likley the bearings are failed