Q&A

Ask Your Question

1990 Chevrolet 1500 Pickup

 

Question: battery light stays on - alternator output guage reads low

Question

19904x4, 5.7L V8, Manassas, VA, March 15, 2011, 17:45
 Rookie

Truck has been setting for a while. Charged up battery, starts fine, runs fine but battery light on dash has come on and stays on. Noticed that the alternator output guage is not registering where it normally does (around 14) when engine running but rather reads down around 8. Alternator bad and truck just running off of battery? Thanks.

1 Answer
Answer It
Flag This

  • Answer #1

    godsoutlaw March 15, 2011, 18:32
    Profile_thumbnail
     Enthusiast

    check for proper amperage .your alternater might be generating enough juice to keep ibattery charged and running. yet not enough for proper specs.so your gauge drops and is really running of battery..(BAD alternator)

    Reply
    Flag This
What are Top Shops?
  • Verified
    Quality Work
  • Guaranteed
    Fair Prices
  • Happy
    Customers
Top Shops Near You
Northwest Automotive, Inc.
(206) 641-9132 | 2.2 mi | Profile »
Northwest Automotive, Inc.
(206) 257-2970 | 6.3 mi | Profile »
Answer Ranks

This week's top 10

1 globalhelper 6 goodguy
2 wetry 7 ebans777
3 wenyan 8 FREDDY BLUE
4 ziptie12 9 Superior Auto Diesel Repair
5 tunnelram 10 team g performance