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2002 Chevy Monte Carlo Power Shortage

Tiny
PEANUT0896
  • MEMBER
  • 2002 CHEVROLET MONTE CARLO
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
Whenever my car has been on for awhile (30+ minutes after its warmed up), I lose like half the power. The stereo won't come on or the dome light or headlights. When I turn it off, then try to start it again, it won't start. The security system won't allow it to start because its not getting enough power. I have changed the battery, plus they checked my alternator & the belt & they are fine, I also had a diag run on it but none of the codes are coming back because there is not enough power to read it. Any ideas would help. I have the mechanics stumped.
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Tuesday, April 15th, 2008 AT 6:24 PM

2 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Is the alternator charging when this happends? Did your mechanics check for output voltage to the compontes that quit working? Sounds like a possible Body Control Module
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Wednesday, April 16th, 2008 AT 7:25 AM
Tiny
PEANUT0896
  • MEMBER
  • 2 POSTS
Yes, the alternator is charging fine, they tested that separately. I have asked around & the Body Control Module seems to be what its narrowing down to. That or I just need to have the computer replaced altogether. Thanx!
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Wednesday, April 16th, 2008 AT 3:56 PM

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