GMC 2003 Sierra - Manual (Page 515)

Part C: Periodic Maintenance
Inspections
Listed in this part are inspections end services which
simild be performed at least twice a year (for Instance,
each spring and laH), You stKHjfd !et
your dealer's
sejvjce department of other {foafifisd s&rvice certter do
these iods- Mat
compieted a! ortoe.
Proper procedures to perform these services may be
found in a service manual., See Service PubUcatiorfs
Ordering intofmetion on pape 7- iO.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system, Looii for broJien, damaged,
rrissing or out-oi-posi1lon parts as well as open seams,
holes, loose connectioiis or other conditiorrs which
could cause a heal buifd-up in the floor pan or could let
exhaust fumes into the vehicle* See frrgme Exhaust
Oft page 2-49.
Fuel System Inspection
Inspect the complete fuel system for damage or leafis.
steering and Suspension Inspection Engine Cooling System Inspection
Inspect the from and rear suspension and steering
syslem for damaged^ loose or missing parís, signs of
wear or lack of luhricattofi. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, eic.
Inspect the hoses and have Ihem replaced if [hey
are cracked, swollen or dgterioratad. InspecI all pjpes,
fittings and clamps; replace as needed. Clean the
outaide ÛÎ the radiator and air conrirtioning condenser.
To iieip ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
К-16