Buick 1993 Century Owner's Manual page 292

Section C: Periodic Maintenance Inspections
Listed below are inspections and services which should be performed at least twice a year (for instance, each spring
and M1). You should let your GM dealer's service department or other qualified service center do these jobs. Make
sure any necessary repairs are completed at once.
INSPECTION
OR SERVICE
Steering, Suspension
and Front-Wheel-
Drive Axle Boot and
Seal Inspection
Exhaust System
Inspection
~~~~ ~~
Throttle Linkage
Inspection
WHAT SHOULD BE DONE
Inspect the front and rear suspension and steering system for damaged, loose
or
missing
parts, signs of wear, or lack
of
lubrication. Inspect the power steering lines and hoses for
proper hookup, binding, leaks, cracks, chafing, etc. Clean and then inspect the drive axle
boot seals for damage, tears or leakage. Replace seals if necessary.
Inspect the complete exhaust system. Inspect the body near the exhaust system. Look for
broken, damaged, missing or out-of-position parts as well as open seams, holes, loose
connections, or other conditions which could cause a heat build-up in the floor pan or could
let exhaust fumes into the vehicle. See "Engine Exhaust" in the Index.
Inspect the throttle linkage for interference or binding, and for damaged or missing parts
Replace parts as needed.
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