Alternator Squeal causes

Asked by Feb 21, 2010 at 04:02 PM about the Geo Metro

Question type: Maintenance & Repair

I own a '97 and '99 Metro and both have begun to squeal upon starting. The squeal quits after a few miles, but is annoying. I have changed tension on the belt that drives the alternator with no success. Do the water pump bearings exhibit this problem?

4 Answers


you bet they do. could also be that you have oil leaking onto the belt is a really really common problem. for the time being try turning all of the features on defrost, headlights...etc while it warms up then when you take off switch them all off and give it rev and she should catch.


i would check to see if its a bad belt maybe try replacing it. i have same problem but mine is from running my kc fogs and stereo, geos have a very week alternator and dont put out lots of power so the belt will squeal if you have an open connection, a dien battery/ alternator. or runnin to much power like me.


I've had this same problem on many early metros [narrow belt type] Front seal leaking oil and getting on the belt. not re-snugging up the tension after installing a new belt.and I've also had alternators that were just a bit tight. The easiest way to checkt out is take the belt off and give the alternator a spin and see if it spins a few revolutions before it stops. If it doesn't replace the alternator.

I've changed the belt on ac and alternator.

Your Answer


Looking for a Used Metro in your area?

CarGurus has 8 nationwide Metro listings and the tools to find you a great deal.


Geo Metro Experts

  • #1
    Mark Grignon
  • #2
  • #3
View All

Related Models For Sale

Used Geo Tracker
22 listings
Used Geo Prizm
27 listings
Used Honda Civic
356 Great Deals out of 53,229 listings starting at $1,200
Used Toyota Corolla
646 Great Deals out of 68,592 listings starting at $1,449
Used Jeep Wrangler
301 Great Deals out of 20,190 listings starting at $2,900
Used Suzuki Swift
3 listings
Used Chevrolet Aveo
7 Great Deals out of 1,171 listings starting at $1,800
Used Chevrolet Silverado 1500
2,175 Great Deals out of 151,475 listings starting at $1,995
Used Ford Festiva
2 listings
Used Ford F-150
2,521 Great Deals out of 220,358 listings starting at $1,222
Used Ford Fiesta
85 Great Deals out of 16,297 listings starting at $2,700
Used Toyota Camry
797 Great Deals out of 74,914 listings starting at $1,700

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.