Serpentine Belt Question
In desperate need of some help.
I have a 1997 SC400, 178k miles, was running great until 2 weeks ago after Lexus state inspection.
Had a fairly erratic rpm at idle which threatened to 0 out and stall the car at stoplights along with a whining sound coming from under the hood whcih coincided with the rpm dips.
Had car checked by lexus and was told my "drive" belts need replacing and that my alternator is oil soaked.
First off, would this issue cause the symptoms Ive been having
Second, is it just the serpentine belt that needs replacing and what does that entail?
Third, Once the belts replaced is it absolutely necessary to change out the alternator or can it be cleaned?
Money is extremely tight so if anyones in the tri-state area up PA way I could use your help for a fair price to save on costly dealer repairs and parts.
Really appreciate any help you can offer and have a great day