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Downloaded from www.Manualslib.com manuals search engine MAINTENANCE  SCHEDULE I 
THE  SERVICES  SHOWN  ON  THIS  CHART UP TO 60,000 MILES (100 000 km) 
ARE TO BE  DONE  AFTER 60,000 MILES AT THE  SAME  INTERVALS. 
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Downloaded from www.Manualslib.com manuals search engine MAINTENANCE  SCHEDULE II 
21 
35 22.5 
37,5 
0 
0 
0 
0 
0 
36 
60  37.5 
62.5 
0 
0 
0 
0 
0 
- 
39 
65 - 
- 
THE  SERVICES  SHOWN  ON  THIS  CHART UP TO 60,000 MILES (100 000 km) 
ARE TO BE  DONE  AFTER 60,000 MILES  AT THE  SAME  INTERVALS. 
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Downloaded from www.Manualslib.com manuals search engine Scheduled Maintenance  Services 
Explanation Of Scheduled  Maintenance  Services 
Below  are  explanations  of the  services  listed  in  the  maintenance  charts. 
The  proper  fluids  and  lubricants  to  use  are  listed  in  this  se\
ction.  Make  sure  whoever  services  your  vehicle  uses  these.  All  parts  should  be  \
replaced  and  all  necessary  repairs  done  before  you  or  anyone  else  drives  th\
e  vehicle. 
1.  ENGINE  OIL  AND  OIL  FILTER  CHANGE*  -ALWAYS  USE  SG  OR  SG/CE  QUALITY,  ENERGY  CONSERVING 
II OILS OF THE  PROPER 
VISCOSITY.  To  determine  the  preferred  viscosity  oil  for  your  vehicle’s 
engine  (e.g.  SAE  5W-30).  See  “Engine  Oil”  in  the  Index.\
 
2.  CHASSIS  LUBRICATION  -Lubricate  the  front  suspension,  ball  joint, 
steering  linkage,  clutch,  and  transfer  case  shift  linkage,  parki\
ng  brake 
cable  guides,  propshaft  splines,  universal  joints,  brake  pedal  s\
prings,  and 
clutch  pedal  springs  at  the  intervals  specified  on  the  proper  \
maintenance 
schedule,  or  at  every  engine  oil  change,  whichever  comes  first.\
  On 
vehicles  without  hydraulic  clutches,  lubricate  the  clutch  cross  \
shaft  every 
30,000  miles 
(50 000 km). 
Ball  joints  should  not  be  lubricated  unless  their  temperature  i\
s  10°F 
(-12°C)  or  higher.  When  the  weather  is  cold,  let  them  war\
m  up  before 
lubricating  them  or  they  could  be  damaged. 
Also,  be  sure  to  check  all  the  vehicle  fluid  levels  at  this  \
time. 
3. CLUTCH  FORK  BALL  STUD  LUBRICATION  (4.3L  ENGINES  ONLY) 
-Lubricate  the  clutch  fork  ball  stud  through  the  fitting  on  th\
e  clutch  housing.  Lubricant  must  be  added  “sparingly”  to  the  fittin\
g,  as  only 
.0066 
Ib.  (.003  kg)  is  required  to  lubricate  the  ball  stud  surface\
. Do not  add 
lubricant  more  often  than  the  intervals  recommended  in  the  Main\
tenance 
Schedules.  Too  much  lubricant 
will damage  the  clutch  assembly. 
4. COOLING  SYSTEM  SERVICE*  -Drain,  flush  and  refill  the  system  wit\
h 
new  coolant.  See  “Engine  Coolant’’  in  the  Index  for  th\
e  proper  coolant 
and  mixture  to  use  in  your  vehicle. 
Also  inspect  the  hoses  and  replace  them 
if they  are  cracked,  swollen,  or 
deteriorated.  Tighten  all  hose  clamps.  Clean  the  outside  of the  radiator 
and  air  conditioning  condenser.  Wash  the  radiator  neck.  To ensure  proper 
operation,  pressure  test  the  radiator  and  cap. 
* An  Emission  Control  Service 
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Downloaded from www.Manualslib.com manuals search engine 5. AIR CLEANER  FILTER  REPLACEMENT*  -Replace  at specified 
intervals.  Ask  your  dealer  for  the proper  replacement  intervals  for  your 
driving  conditions. 
6. FRONT  WHEEL  BEARING  REP1 -;< (2-WHEEL  DRIVE  ONLY)  -Clean 
and  repack  the  front  wheel  bearings  at  each  brake  relining,  or at  the 
specified  interval,  whichever  comes  first. 
7. TRANSMISSION  SERVICE: 
Automatic  Transmission  -Change  the  transmission  fluid  and  filter \
 every  15,000  miles  (25 
000 km) if the  vehicle  is mainly  driven  under  one  or 
more  of  these  conditions: 
In  heavy  city  traffic. 
Where  the outside  temperature  regularly  reaches  90°F (32°C)  or 
In hilly  or  mountainous  terrain. 
Frequent  trailer  pulling. 
higher. 
0 Uses  such  as  taxi,  police,  delivery  or  other  commercial  service\
. 
If the  vehicle is not  used  mainly  under  any 
of  these  conditions,  change 
the  fluid  and  filter  every  30,000  miles 
(50 000 km).  See  “Automatic 
Transmission  Fluid”  in the  Index  for  more  information. 
Manual  Transmission  -Transmission  fluid  does  not  require  periodic\
 
changing. 
8. FUEL  FILTER  REPLACEMENT*  -Replace  the  fuel filter at  the  specified 
9.  SPARK  PLUGS  REPLACEMENT*  -Replace  spark  plugs  with  the  type 
interval 
or  sooner 
if clogged. 
listed  in Section 
6. See  “Specification  Charts”  in  the  Index. 
10.  SPARK  PLUG  WIRE  INSPECTION*  -Clean  wires  and  inspect  for  b\
urns,  cracks  or other  damage.  Check  the  wire  boot  fit  at  the  distributor  and  \
at 
the  spark  plugs.  Replace  wires  as needed. 
11.  ENGINE  TIMING  CHECK  AND  DISTRIBUTOR  CHECK*  -Adjust  timing  to  underhood  label  specifications.  Inspect  the  inside  and  outsid\
e  of the 
distributor  cap  and  rotor  for  cracks,  carbon  tracking  and  corro\
sion.  Clean  or  replace  as  needed. 
12.  FUEL  TANK,  CAP  AND  LINES  INSPECTION*  -Inspect  the  fuel  tan\
k,  cap  and  lines  for  damage  or  leaks.  Remove  fuel  cap,  inspect  g\
asket  for 
an  even  filler  neck  imprint,  and  any  damage.  Replace  parts  as \
 needed. 
* An  Emission  Control  Service 
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Downloaded from www.Manualslib.com manuals search engine Periodic Maintenance  Inspections 
Listed below are inspections  and  services  which  should  be  performed  at  least 
twice  a  year  (for  instance,  each  spring  and  fall).  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. 
Steering  and  Suspension  lnspectiont -Inspect front  and  rear  suspension 
and  steering  system  for  damaged,  loose  or  missing  parts,  signs \
 of  wear  or 
lack  of  lubrication.  Inspect  power  steering  lines  and  hoses  for\
  proper  hook-up, 
binding,  leaks,  cracks,  chafing,  etc.  (On vehicles  equipped  with  manual 
steering  gear,  check  for  seal  leakage.)  Lubricate  the  steering  linkage. 
Accelerator  Control  System  -Lubricate  all pivot  points  with  engine  oil, 
except  the 
TBI throttle  shaft. Do not  lubricate  the  cam  pulley.  Remove  all 
external  deposits  from  pulley.  Do  not  oil  any  accelerator  or  cruise  control 
cables.  Replace  any  cables  that  have  high effort  or  excessive  wear. 
Exhaust  System  Inspection  -Inspect  the complete  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  buildup  in  the  floor  pan  or  could 
let  exhaust  fumes  seep  into  the  passenger  compartments.  See  “\
Engine  Exhaust”  in  the Index.. 
Drive  Axle  Service  -Check  rear/front  axle  fluid  level  and  add  as needed. 
Check  constant  velocity  joints  and  axle  seals  for  leaking. 
Transfer  Case  (four-wheel  drive)  lnspectiont -Every 
12 months  or  at  oil 
change  intervals,  check  front  axle  and  transfer  case  and  add  l\
ubricant  when 
necessary.  Oil the  control  lever  pivot  point  and  all  exposed  control  linkage. \
Check  vent 
hose at  transfer  case  for  kinks  and  proper  installation.  More 
frequent  lubrication  may  be  required  on off-road  use. 
tA fluid loss in these  systems  may  indicate  a  problem.  Have  them  inspected 
and  repaired  at  once. 
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