1997 GMC Sonoma Owner's Manual - Page 306

Capacities and Specifications Engine Type VIN Code Firing Order Horsepower (T Series) Horsepower (S Series) Thermostat Specification Spark Plug Gap 2.2L L4 4 1-3-4-2 118 at 5,200 rpm 1 18 at 5,200 rpm 195°F (91 "C) 0.045 inches (0.114 cm) "VORTEC" 4300 X 1-6-5-4-3-2 180 at 4,400 rpm 175 at 4,400 rpm 195°F (91°C) 0.045 inches (0.114 cm) "VORTEC" 4300 V6 V6 W 1-6-5-4-3-2 190 at 4,400 rpm 180 at 4,400 rpm 195°F (91°C) 0.045 inches (0.114 cm) Wheels and Tires Wheel Nut Torque ...95 lb-ft ( I 30 N-m) Tire Pressure ...See the CertificationlTire label. See "LoadingYour Vehicle'' in the Index. 6-68