Alternator/generator/regulator problems of the 1997 GMC Suburban

Three problems related to alternator/generator/regulator have been reported for the 1997 GMC Suburban. The most recently reported issues are listed below.

1 Alternator/generator/regulator problem

Failure Date: 01/17/2004

1997 GMC Suburban- multiple engine & transmission failures. At 60,000 miles, vehicle began to shift hard. Returned to shop for diagnosis and repairs several times for work. Finally, while driving the vehicle in city traffic, the transmission failed compeletly. Required valve cover and transmission rebuild @ cost of $2,000. On December 27 '03, had to replace the radiator. On Jan 17 '04, discovered that there was no antifreeze in new radiator. Returned to mechanic who replaced the radiator. Said the intake manifold needed to be replaced. Cost: ~$600. Took to another mechanic for second opinion. Same diagnosis. Both state that gm is aware of both problems, however, they will not cover the costs of repairs or replacement. Additionally- replaced alternator two times; replaced water pump two times; replaced the master cylinder in fall 2003.

2 Alternator/generator/regulator problem

Failure Date: 01/09/2000

While driving the serpentine belt tensioner broke from its mounting and resulted in loss of power steering and other components including charging of the battery. The alternator also shorted out. The manufacturer and the dealer were notified. The consumer was told that the warranty not longer covered the belt. The brakes shuttered while braking from 60 mph. The dealer replaced the front brake pads and resurfaced the rotors.

3 Alternator/generator/regulator problem

Failure Date: 09/04/1998

While driving the Suburban just shuts off without warning, this happens on flat roads as well as hilly roads, the dealer was not able to duplicate the problem, but the entire computer ignition and the alternator were replaced. However, the truck continues to do the same thing.


Other Electrical System related problems of the 1997 GMC Suburban



Fuel Economy of Suburban Vehicles
Suburban Service Bulletins
Suburban Safety Recalls
Suburban Defect Investigations