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International Automotive Technicians Network
1990 GMC C3500 Sierra 7.4L Alternator
Posted to GM Electrical on 2/10/2005 18 Replies

Hello Techs. This GMC truck has a problem of distroying the alternator front bearing or pulley over a matter of a month to a year. Five alternators have been replaced on this vehicle all rebuilt 105 amp units. Alt belt lenght has been chacked 97". Engine has n...

18 Replies Received (View Replies)

  Related Documents & Media  1990 GMC C3500 Sierra

 
Message Closed w/FIX

car Vehicle Data

1990 GMC C3500 Sierra

VIN 1GDJC34N1L
Engine7.4 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI
AffectedAlternator
ConditionsUnit Failure
Message Closed w/FIX

car Vehicle Data

1990 GMC C3500 Sierra

VIN 1GDJC34N1L
Engine7.4 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI
AffectedAlternator
ConditionsUnit Failure