Page 290 of 433
Downloaded from www.Manualslib.com manuals search engine A.  Battery 
B. Air Cleaner 
C.  Radiator  Cap 
D.  Coolant Recovery  Tank 
E. Air Filter Restriction Indicator 
F.  Engine Oil Dipstick 
G. Automatic Transmission Dipstick 
H. Fan 
I. Power Steering Fluid Reservoir 
J. Engine  Oil Fill 
K. Brake Fluid Reservoir 
L. Windshield  Washer Fluid Reservoir 
M. Fusemelay  Center 
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        Page 292 of 433
Downloaded from www.Manualslib.com manuals search engine A. Battery 
B. Coolant Recovery Tank 
C. 
Air Cleaner 
D.  Radiator  Cap 
E. Air Filter  Restriction  Indicator 
F.  Engine  Oil Dipstick 
G. Automatic Transmission  Dipstick 
H. Engine  Oil  Fill 
I. Fan 
J. Power Steering  Fluid  Reservoir 
K. Brake  Fluid  Reservoir 
L. Windshield Washer  Fluid  Reservoir 
M. FuseRelay Center 
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Downloaded from www.Manualslib.com manuals search engine Engine  Oil  Additives 
Don’t  add anything to your  oil. Your GM dealer is ready 
to advise  if  you think something should  be added. 
When  to  Change  Engine  Oil 
If  any one of these  is true  for  you,  use  the short triplcity 
maintenance schedule: 
0 
0 
0 
0 
0 
Most trips are less than 5 to 10 miles (8 to 16 km). 
This  is particularly important when  outside 
temperatures are  below freezing. 
Most  trips include extensive  idling (such as frequent 
driving  in stop-and-go  traffic). 
You  operate your vehicle  in dusty areas  or 
off-road  frequently. 
You frequently  tow a trailer  or use a carrier  on top of 
your  vehicle. 
The vehicle  is  used for delivery  service, police, taxi 
or  other commercial application. 
Driving under these conditions  causes  engine oil to 
break  down  sooner.  If any  one  of these  is true  for your 
vehicle,  then  you  need  to  change your oil and filter 
every 
3,000 miles (5 000 km) or 3 months -- whichever 
occurs first.  If 
none 
of them  is true,  use the long  triphighway 
maintenance  schedule.  Change the oil  and  filter  every 
7,500 miles (12 500 km) or 12 months -- whichever 
occurs  first.  Driving a vehicle  with a fully  warmed 
engine  under highway conditions  causes  engine  oil to 
break  down  slower. 
What  to Do with  Used  Oil 
Did you know that used  engine  oil  contains  certain 
elements  that may  be unhealthy for  your skin and  could 
even  cause  cancer?  Don’t let used oil stay  on your  skin 
for  very  long.  Clean  your skin and nails  with soap  and 
water,  or a good hand cleaner.  Wash or properly  throw 
away  clothing  or rags containing used  engine oil. (See 
the manufacturer’s warnings about  the  use  and  disposal 
of  oil  products.) 
Used  oil  can  be  a real threat  to the  environment.  If  you 
change  your own oil, be  sure  to  drain all  free-flowing  oil 
from  the filter  before disposal. Don’t  ever  dispose of 
oil 
by putting it  in the trash, pouring  it  on the  ground, 
into  sewers,  or  into  streams or bodies 
of water.  Instead, 
recycle  it by taking 
it to a place that  collects used oil. If 
you  have  a problem properly disposing 
of your used oil, 
ask  your dealer, a service station  or a local  recycling 
center  for  help. 
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        Page 297 of 433
Downloaded from www.Manualslib.com manuals search engine Air Cleaner  (Gasoline  Engines) 
Your  air  cleaner  is located between the battery  and 
coolant  recovery tank.  The air cleaner assembly 
has  an 
indicator  that lets 
you know  when  the  air 
filter is dirty  and  needs 
to  be  serviced. 
The  indicator  is  located in  the air intake tube  between 
the  air  cleaner  and the engine.  See “Owner Checks  and 
Services”  in the  Index  to determine  when  to check 
the indicator. 
If  the  area  inside the clear section 
of the indicator  is 
green,  no  air filter service  is required.  When the area 
inside 
the indicator is orange  and CHANGE AIR 
FILTER  appears,  the filter should  be replaced.   
         
        
        
     
        
        Page 298 of 433
Downloaded from www.Manualslib.com manuals search engine To remove the air filter, unhook the retainer  clips and 
remove the cover. Lift  the filter  and the connected  duct 
out  of the  air  cleaner housing.  Hold the duct and  remove 
the  filter  by  both  pulling  and twisting the filter away 
from  the duct. Care should  be taken to dislodge as little 
dirt  as possible. 
Clean  the filter sealing surface  of the duct  and  the 
filter  housing.  Install 
the  new  filter by pushing it all the  way to the  stop 
on the duct. 
Install  the duct and the filter  into the air  cleaner  housing. 
Make  sure that the duct  fits properly  into the housing. 
Install  the cover and fasten the  two retaining  clips. 
After the air filter is properly  serviced,  the indicator 
should be reset. Push the button  on top 
of the  indicator 
to  reset 
it to the green (clean) filter  zone. 
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Downloaded from www.Manualslib.com manuals search engine Refer to the Maintenance  Schedule to determine  when  to 
replace  the 
air filter. See “Owner  Checks  and Services” 
in  the  Index. 
A CAUTION: 
Operating  the  engine  with the air cleaner off can 
cause  you or others  to  be burned.  The  air cleaner 
not  only  cleans  the air,  it  stops  flame if the  engine 
backfhes. 
If it  isn’t  there,  and  the  engine 
backfires,  you  could  be  burned. Don’t drive with 
it 
off, and  be careful  working  on the  engine  with 
the 
air cleaner off. 
NOTICE: 
If the air cleaner is off, a backfire  can cause  a 
damaging  engine  fire.  And,  dirt can easily  get 
into  your  engine,  which  will damage 
it. Always 
have  the air cleaner  in place  when  you’re  driving. 
Automatic Transmission Fluid 
When to Check and Change 
A good time to  check your automatic  transmission  fluid 
level  is  when the  engine  oil  is  changed. 
Change both the  fluid and filter every 
50,000 miles 
(83 000 km) if the  vehicle is mainly driven under one or 
more 
of these conditions: 
0 In heavy city traffic where the outside temperature 
regularly  reaches 
90°F (32 “C) or higher. 
In hilly  or mountainous terrain. 
When  doing frequent trailer towing. 
0 Uses such as found  in taxi, police or delivery service. 
If you do not use your vehicle under any  of these 
conditions, the  fluid and filter  do not  require changing. 
See  “Scheduled Maintenance Services”  in the Index. 
How to Check 
Because  this operation can  be a little difficult,  you 
may  choose  to  have this done at your 
GM dealership 
Service  Department.   
         
        
        
     
        
        Page 349 of 433

Downloaded from www.Manualslib.com manuals search engine Normal  Maintenance  Replacement  Parts -- Gasoline  Engines 
Replacement part numbers  listed in this section  are based  on  the  latest information  available at the time  of printing, 
and  are subject  to change.  If a part  listed  in  this manual  is  not the same as  the part  used  in  your  vehicle when 
it was 
built,  or  if  you have any questions,  please contact  your  GM truck  dealer. 
Engine 
“VORTEC” 5700 
VIN R 
Oil  Filter  AC Type  PF1218f 
Air  Cleaner  Filter  AC  Type A1300C 
Spark  Plugs 
AC Type  4  1-932 
Spark  Plug  Gap  0.060 
in. (1.52 mm) 
Fuel  Filter  AC  Type GF626 
Wiper  Blades  (Front)  GM Part No. 22154886 
Wiper  Blade Type (Front)  Trico 
Wiper  Blade  Length  (Front)  18  inches  (45.0  cm) 
Wiper  Blade  (Rear)  GM Part 
No. 22154396 
Wiper  Blade  Type (Rear)  Trico 
Wiper  Blade  Length  (Rear)  14  inches  (35.5  cm) 
“four-Wheel-Drive  Vehicles 
-- use a  PF52  oil filter. 
‘VORTEC” 7400 
J 
AC  Type  PF1218 
AC  Type  A1300C  AC  Type  41-932 
0.060 in. (1.52 mm) 
AC  Type  GF626 
GM  Part 
No. 22154886 
Trico 
18 inches 
(45.0 cm) 
GM Part No. 22154396 
Trico 
14  inches  (35.5  cm)   
         
        
        
     
        
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Downloaded from www.Manualslib.com manuals search engine Cooling  System  Capacity  (Approximate) 
After refill, the level  must be rechecked. See “Cooling System” in the  Index. 
ENGINE  VIN  QTY  Without  Rear  Heater 
“VORTEC” 5700  R  17.5  Quarts (16.5 L) 
“VORTEC”  7400 J 25 Quarts  (23.5 L) 
Crankcase  Capacity  (Approximate) 
After refill, the level  must be rechecked.  See “Engine  Oil”  in the Index. 
ENGINE  VIN  QUANTITY  WITH  FILTER? 
“VORTEC”  5700  R 5 Quarts (4.8 L) 
“VORTEC”  7400 J 7 Quarts (6.5 L) 
?Oil  filter should be changed at  every oil change. 
QTY With Rear  Heater 
20 Quarts (19 L) 
27.5  Quarts  (26 L) 
6-71