GMC 2003 Sierra - Manual (Page 516)

Throttle System Inspection
Inspacl the throttle systern ftjr interference or binding,
and for damaged or miSisIng parts. Flepface parts
as needed. Replace any components that have high
eHort or excessive wear. D
p not tubricale accelerator
and cruise conirol catnles.
Transfer Case and Front Axle
(Four-Wheel Drive) Inspection
Every 12 months or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary. A I3uid loss could ir>djcate a problem;
check and have it repaired^ i( needed. Or manual
shift transfer case, oil ihe control lever pivol point. Check
vent hose at transfer case tor kinks and proper
instaJIation. More frequent tubrication may he required
DO ott-road use.
Brake System Inspection
Inspect the complete system. Inspect brake tines and
hoses for proper hook-up, binding, teaks, cracks,
chahng, etc. Inspect disc brake pads for wear and rotors
for surlace condition. Inspect other brake parts,
including calipers, parking brake, etc. Youi may need to
have your brakes inspacted more often if your driving
habits or conditions resull in frequenl braking.
6’17