engine light comes on when stationary

1997 VAUXHALL CORSA
78,500 MILES
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MAPLEDEAN
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  • 1 POST
I purchased a corsa second hand, it is making a noise coming from the alternator. When I was driving home the engine light came on. However now it only comes on when I'm stationary. Please help?
Apr 14, 2013 at 11:44 AM
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RANDICO
  • CAR REPAIR CONTRIBUTOR
  • 174 POSTS
This can be the alternator ,check the charging system ,at higher RPM you have a greater voltage output from the charging system ,at low idle the alternator works harder, (by grounding the field).
Apr 14, 2013 at 12:28 PM
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CJ MEDEVAC
  • CAR REPAIR CONTRIBUTOR
  • 11,004 POSTS


THIS MAY HELP

http://www.youtube.com/watch?v=Bzz7P3qNHcE

LET US KNOW WHAT YOU FIND OUT

THE MEDIC
Apr 14, 2013 at 1:05 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.