Engine Firing Orders: 1990
GMC C 1500 P/U 2WD 4.3 liter V-6 VIN "Z" GMC C 1500 P/U 2WD 5.0 liter V-8 VIN "H" GMC C 1500 P/U 2WD 5.7 liter V-8 VIN "K" GMC C 2500 P/U 2WD 4.3 liter V-6 VIN "Z" GMC C 2500 P/U 2WD 5.0 liter V-8 VIN "H" GMC C 2500 P/U 2WD 5.7 liter V-8 VIN "K" GMC C 2500 P/U 2WD 7.4 liter V-8 VIN "N" GMC C 3500 P/U 2WD 4.3 liter V-6 VIN "Z" GMC C 3500 P/U 2WD 5.0 liter V-8 VIN "H" GMC C 3500 P/U 2WD 5.7 liter V-8 VIN "K" GMC C 3500 P/U 2WD 7.4 liter V-8 VIN "N" GMC G 1500 ½-Ton Van 4.3 liter V-6 VIN "Z" GMC G 1500 ½-Ton Van 5.0 liter V-8 VIN "H" GMC G 1500 ½-Ton Van 5.7 liter V-8 VIN "K" GMC G 2500 ¾-Ton Van 4.3 liter V-6 VIN "Z" GMC G 2500 ¾-Ton Van 5.0 liter V-8 VIN "H" GMC G 2500 ¾-Ton Van 5.7 liter V-8 VIN "K" GMC G 3500 1-Ton Van 4.3 liter V-6 VIN "Z" GMC G 3500 1-Ton Van 5.0 liter V-8 VIN "H" GMC G 3500 1-Ton Van 5.7 liter V-8 VIN "K" GMC G 3500 1-Ton Van 7.4 liter V-8 VIN "N" GMC Jimmy Full Size 5.7 liter V-8 VIN "K" GMC K 1500 P/U 4WD 4.3 liter V-6 VIN "Z" GMC K 1500 P/U 4WD 5.0 liter V-8 VIN "H" GMC K 1500 P/U 4WD 5.7 liter V-8 VIN "K" GMC K 1500 P/U 4WD 7.4 liter V-8 VIN "N" GMC K 2500 P/U 4WD 4.3 liter V-6 VIN "Z" GMC K 2500 P/U 4WD 5.0 liter V-8 VIN "H" GMC K 2500 P/U 4WD 5.7 liter V-8 VIN "K" GMC K 2500 P/U 4WD 7.4 liter V-8 VIN "N" GMC K 3500 P/U 4WD 4.3 liter V-6 VIN "B" GMC K 3500 P/U 4WD 5.0 liter V-8 VIN "H" GMC K 3500 P/U 4WD 5.7 liter V-8 VIN "K" GMC K 3500 P/U 4WD 7.4 liter V-8 VIN "N" GMC R 2500 P/U 2WD 5.7 liter V-8 VIN "K" GMC R 2500 P/U 2WD 7.4 liter V-8 VIN "N" GMC R 3500 P/U 2WD 5.7 liter V-8 VIN "K" GMC R 3500 P/U 2WD 7.4 liter V-8 VIN "N" GMC S15/T15 2WD Jimmy 2.8 liter V-6 VIN "R" GMC S15/T15 2WD Jimmy 4.3 liter V-6 VIN "B" GMC S15/T15 2WD P/U 2.5 liter L4 VIN "A" GMC S15/T15 2WD P/U 2.8 liter V-6 VIN "R" GMC S15/T15 2WD P/U 4.3 liter V-6 VIN "B" GMC S15/T15 4WD Jimmy 2.8 liter V-6 VIN "R" GMC S15/T15 4WD Jimmy 4.3 liter V-6 VIN "B" GMC S15/T15 4WD P/U 2.8 liter V-6 VIN "R" GMC S15/T15 4WD P/U 4.3 liter V-6 VIN "B" GMC Safari Van AWD 4.3 liter V-6 VIN "Z" GMC Safari Van M 2.5 liter L4 VIN "A" GMC Safari Van M 4.3 liter V-6 VIN "B" GMC Safari Van M 4.3 liter V-6 VIN "Z" GMC Suburban ½-Ton 2WD 5.7 liter V-8 VIN "K" GMC Suburban ½-Ton 2WD 7.4 liter V-8 VIN "N" GMC Suburban ½-Ton 4WD 5.7 liter V-8 VIN "K" GMC Suburban ½-Ton 4WD 7.4 liter V-8 VIN "N" GMC Suburban ¾-Ton 2WD 5.7 liter V-8 VIN "K" GMC Suburban ¾-Ton 2WD 7.4 liter V-8 VIN "N" GMC Suburban ¾-Ton 4WD 5.7 liter V-8 VIN "K" GMC Suburban ¾-Ton 4WD 7.4 liter V-8 VIN "N" GMC V 2500 P/U 4WD 5.7 liter V-8 VIN "K" GMC V 2500 P/U 4WD 7.4 liter V-8 VIN "N" GMC V 3500 P/U 4WD 5.7 liter V-8 VIN "K" GMC V 3500 P/U 4WD 7.4 liter V-8 VIN "N"
Additional Information provided courtesy of AllDATA