do all the alternators whine or is it the alternator

Asked by Feb 18, 2017 at 03:36 PM about the 1999 Pontiac Grand Prix

Question type: Maintenance & Repair

car whines sounds like power steering pump changed it but still whines.nothing left but alternator

2 Answers

270,275

Not all, if it does, then the bearing might be worn out. Remove the serpentine belt and spin the pulleys by hand, see if one makes noise or is rough turning. Also a free spinning one is also needs to be replaced.

1 of 1 people found this helpful.
74,105

Could be normal. When under heavy load (headlights, rear defogger, blower on high, etc.) some alternators will whine. Not super loud, but audible. Most of my GMs have done this. If it's loud though, then it's the bearings inside of the alternator. HTH. -Jim

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,470
  • #2
    Tom Demyan
    Reputation
    3,120
  • #3
    munron
    Reputation
    2,550
View All

Related Models For Sale

Used Chevrolet Impala
166 Great Deals out of 1,037 listings starting at $2,495
Used Chevrolet Monte Carlo
16 listings starting at $4,499
Used Chevrolet Malibu
94 Great Deals out of 1,753 listings starting at $888
Used Pontiac Grand Am
29 listings
Used Chevrolet Camaro
916 listings starting at $12,498
Used Ford Mustang
5 Great Deals out of 1,036 listings starting at $3,995
Used Jeep Grand Cherokee
157 Great Deals out of 3,660 listings starting at $2,995
Used Nissan Maxima
29 Great Deals out of 358 listings starting at $2,495
Used Buick Regal
4 Great Deals out of 233 listings starting at $7,495

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
5 Great Deals out of 23 listings starting at $1,400
2007 Pontiac Grand Prix For Sale
9 listings starting at $3,400
2006 Pontiac Grand Prix For Sale
7 listings starting at $4,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.