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1997 GMC Sierra Serpentine Belt Diagram: Complete Routing Guide and Maintenance Specs for 2026

"The 1997 GMC Sierra represents a pinnacle of the GMT400 platform, a generation of trucks that, by 2026, has transitioned from reliable workhorses to cherished classic pickups. Whether you are maintaining a base-model C1500 with the 4.3L V6 or a heavy-duty K3500 with the 7.4L Vortec or 6.5L Diesel, understanding the serpentine belt routing is fundamental to engine health. A single belt drives the alternator, power steering pump, air conditioning compressor, and water pump. If this belt snaps or slips, your Sierra loses its cooling capacity, steering assist, and electrical charging immediately. This guide provides the definitive technical speci..."

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