Smoke from Alternator area

Tiny
SAMSAMPS
  • MEMBER
  • 1995 CHEVROLET CAPRICE
  • V8
  • 2WD
  • AUTOMATIC
  • 153,000 MILES
I have a 95 chevy caprice with a 9c1 police package with a 5.7 liter engine. Car runs fine but one day last week it didn't start but started with a boost but batt. Sensor in the dash was low. After a while it started up fine and the sensor showed full charge then one day the sensor showed low power I checked it by Autozone and batt. And alternator were fine. However I noticed after running a while and the engine is turned off theres light smoke coming from the alternator area. I can't say it's coming from the alternator but it only smokes for a few minutes after the engine is shut never while its running. Otherwise everything is fine no warning lights or smells. Maybe someone can help me it would be much appreciated as I have no idea what it could be. Thanks
Thursday, December 16th, 2010 AT 4:12 AM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Check the crank pulley and drive belt tensions. If crank pulley is equipped with harmonic dampers, it could be faulty and slipping intermittently resulting in insufficient charging and oveheating. You would most probably have intermittent squeaking or squesling noises, es[pecially when starting from cold.
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Sunday, December 19th, 2010 AT 4:44 PM
Tiny
SAMSAMPS
  • MEMBER
  • 2 POSTS
Thanks a lot! It definitely has squeaking noises coming from the belt area I will check it. Any idea on how to fix it?
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Sunday, December 19th, 2010 AT 6:38 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
If the damper is bad, crank pulley has to be replaced.
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Sunday, December 19th, 2010 AT 7:02 PM

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