GMC 2000 Sonoma Owner's Manual page 253

When you lift the hood, you'll see these items on the 2200 L4 engine:
A. Battery
B. Coolant Recovery Tank
C. Automatic Transmission Dipstick
D. Engine Oil Fill Cap and Dipstick
E. Power Steering Reservoir
F. Brake Master Cylinder
G. Engine Air Cleaner/Filter
H. Engine Compartment Fuse Block
I. Windshield Washer Fluid Reservoir
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