
To wing Your Vehicle 
Try to have  your GM dealer or a professional  towing  service tow your 
vehicle. They  can  provide the right equipment  and know how to tow 
it 
without  damage. 
If  your  vehicle has been changed  since 
it was  factory-new.  by  adding such 
things  like  fog  lamps,  aero  skirting, 
or special tires and  wheels, these things 
could  be damaged  during  towing. 
Before  you do anything, 
turn on the hazard  warning  flashers. 
When you  call, tell the towing  service: 
0 That  your  vehicle  has  rear-wheel drive,  or that it has the four-wheel 
drive  option. 
The  make,  model, and year  of your vehicle. 
0 Whether you can  move the shift lever for the transmission  and transfer 
case, 
if you  have  one. 
If there was  an accident.  what was damaged. 
A CAUTION: 
To help  avoid  injury  to you  or others: 
Never  let  passengers ride  in a vehicle  that is  being  towed. 
0 Never  tow  faster  than  safe or posted  speeds. 
0 Never  tow  with  damaged parts not fuIly  secured. 
0 Never  get  under your vehicle  after  it has been  lifted  by the 
tow  truck. 
0 Always  use  separate safety chains on  each  side  when  towing  a 
vehicle. 
0 For  pickups  (except cab chassis  models),  use  T-hooks  on front 
. of vehicle,  J-hooks  on rear. 
For  cab  chassis  models,  use  J-hooks  on  front  and rear of 
vehicle. 
When  your  vehicle is being towed, have the ignition  key off. The  steering 
wheel  should  be clamped 
in a straight-ahead  position, with a clamping 
device  designed  for  towing, service. 
Do not use  the vehicle’s  steering 
column  lock for  this.  The  transmission  and  transfer  case, if 
you have one, 
should  be 
in NEUTRAL (N) and the parking brake  released. 
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Hesitation  or  “flat”  performance  at  high  speed  or  during  \
hard acceleration 
may  be  an  indication  of premature  fuel  filter  plugging  due  to  dirty  or 
contaminated  fuel.  The fidter  element  may need  to  be  changed 
if this 
happens.  See  your  dealer  for  assistance. 
To drain  water: 
1. Stop and park  the  vehicle  in a  safe  place.  Turn off the  engine  and  apply 
2. Remove  the  fuel  tank  cap. 
the  parking  brake. 
3. Place  a 
fuel-resistant  container  under  the  filter  drain  hose. 
5. 
6. 
7. 
8. 
4. With  the engine 
off,  open  the 
water  drain  valve 
2 to 3 turns. 
When  standing in 
front  of the 
vehicle,  the  valve 
is  located  on  the 
right  side  of the 
thermostat 
housing. 
Start  the  engine  and  allow  it  to  idle  until  clear  fuel  is  ob\
served. 
Stop  the  engine  and close  the  water  drain  valve. 
Remove  the  fuel-resistant  container  and properly dispose of the 
contaminated  fuel. 
To find  out  how  to  properly dispose of contaminated 
diesel  fuel  see  “What  to  Do  with  Used  Oil”  in  the  “E\
ngine  Oil (Diesel 
Engines)”  part,  later  in this  section. 
Install  the  fuel  tank  cap. 
If the  WATER IN FUEL light  comes  on  again  after  driving  a  short  distance 
or  the  engine  runs  rough  or  stalls-a large  amount  of water  has  probably 
been  pumped  into  the 
fuel tank.  The  fuel  tank  should  be  purged. 
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A CAUTION: 
Diesel  fuel is flammable. It could start a fire if it  gets  on  hot 
engine parts.  You could  be burned.  Don't  let too much  fuel flow 
from  the air bleed 
valve, and  wipe  up any  spilled  fuel  with a 
cloth. 
3. Close the air bleed  valve. 
4. Turn the ignition key to START for 10 to 15 seconds  at a time until 
your engine  starts. 
Fuel  Filter  Replacement  (Diesel  Engines) 
If you want to  change  the fuel  filter yourself,  here's how to  do it: 
A CAUTION: 
Diesel  fuel  is flammable. It could  start a fire if something  ignites 
it,  and  you could  be  burned. Don't  let  it get  on  hot engine  parts, 
and  keep matches  or other  ignition  sources away. 
First. drain  any water  from the filter  following  the procedure for  draining 
water listed  previously. 
Your  vehicle's  engine  should  be  off until the end 
of the  following  procedure. 
1. Apply the parking  brake. 
2. Take off the fuel tank  cap.  This releases  vacuum in the tank. 
3. Unscrew and 
remove the ring 
nut from  the top 
of  the 
filter head. 
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Wait at least  30 minutes before  checking the transmission fluid  level if you 
have been driving: 
When  outside temperatures  are  above 90°F (32°C). 
At high speed for quite a while. 
In  heavy traffic - especially in hot  weather. 
While pulling a trailer. 
To get the right reading.  the fluid should  be  at  normal  operating 
temperature,  which  is 180°F to 200°F 
(82°C to 93°C). 
To check transmission  fluid  hot: Get  the vehicle warmed  up by  driving 
about 
15 miles (24 km)  when outside temperatures are above  50°F  (10°C). 
If it's  colder than 50°F (lO"C), drive the vehicle  in DRIVE (3) until the 
engine  temperature  gage moves  and then remains steady  for ten  minutes. 
Then  follow the  hot check procedures. 
To check transmission  fluid cold: A cold check  is made  after the vehicle 
has  been sitting for eight hours  or more 
with the  engine  off  and  is  used only 
as a reference.  Let  the engine run at idle for five minutes if outside 
temperatures  are  50°F 
(10°C) or more. If it's  colder than  50°F (IOOC), you 
may  have  to idle  the engine  longer. Should  the fluid  level  be  low during  a 
cold  check,  you 
must perform a hot check before adding fluid.  This will 
give you a more accurate reading  of the fluid  level. 
To check the fluid hot or cold 
Park your vehicle on a level place.  Keep  the engine  running. 
With the parking brake  applied, place the shift lever in PARK (P). 
With your foot on the brake  pedal,  move the shift lever through each 
gear  range,  pausing for about three seconds 
in each range.  Then, 
position  the shift lever 
in PARK  (P). 
Let the engine  run  at idle for three  minutes  or more. 
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Maintenance  Schedule I - Gasoline  Engines  With 
Light  Duty  Emissions 
3,000 Miles (5 000 km) 
[7 Change  engine  oil  and filter  (or every 3 months, whichever  occurs 
first). 
An Emission Control Sen7ic.e. 
0 Lubricate the front  suspension, king  pin bushings,  steering linkage, 
transmission  shift linkage. transfer  case  shift linkage, parking  brake 
cable guides, rear driveline  center splines. front  axle propshaft  splines. 
brake pedal  springs and clutch  pedal springs.  Ball joints  and king  pin 
bushings should  not  be  lubricated  unless their temperature is 
10" F 
(-1 2" C), or higher. When  weather  is cold, let the  ball -joints and king 
pin  bushings  warm up before  lubrication  or they  could be damaged. 
Perform  each  of  the  listed lubrication  service items  at this mileage 
interval  (or every 
6 months, whichever  occurs  first). 
C Check rear/front axle fluid  level  and add -fluid as needed. Check 
constant  velocity  joints  and 
axle seals for leaking. *'* 
DATE SERVICED BY: ACTUAL MILEAGE I 
6,000 Miles (10 000 km) 
iI Change  engine  oil and  filter  (or every 3 months, whichever  occurs 
first). 
AI? Emission Confro1 Ser\lic.e. 
Lubricate  the front  suspension, king  pin bushings,  steering linkage, 
transmission  shift linkage, transfer case  shift linkage,  parking brake 
cable  guides,  rear driveline  center splines, front axle propshaft  splines. 
brake  pedal springs  and clutch  pedal  springs.  Ball joints  and king  pin 
bushings  should  not  be  lubricated  unless  their temperature 
is 10" E 
(,-12" C), or higher. When weather is cold, let the ball  joints and king 
pin  bushings  warm up  before lubrication 
or they could  be damaged. 
Perform each of the  listed  lubrication  service items at  this  mileage 
interval  (or every 
6 months, whichever  occurs  first). 
0 Check  readfront axle fluid level and  add fluid as needed. Check 
constant velocity  joints and axle seals  for leaking. 
*'$ 
(Contiwed) 
7-13 
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Maintenance  Schedule I - Gasoline  Engines  With 
Light 
Duty Emissions ~~~~  ~~  ~  ~ 
(Continued) 
0 Rotate  tires. See "Tire  Inspection and Rotation" in the Index  for  proper 
rotation pattern and additional information. 
I DATE I ACTUAL  MILEAGE I SERVICED BY: 
9,000 Miles (15 000 km) 
0 Change  engine  oil and filter (or every 3 months, whichever  occurs 
first). 
An Emission Control Service. 
Lubricate the front  suspension,  king  pin bushings, steering linkage, 
transmission  shift  linkage, transfer case shift linkage, parking brake 
cable  guides, rear  driveline center splines,  front  axle propshaft splines, 
brake pedal  springs  and clutch  pedal springs.  Ball joints  and king  pin 
bushings  should 
not be  lubricated unless their temperature  is IO" F 
(-12" C), or higher. When weather is cold,  let the ball joints  and king 
pin bushings  warm up before lubrication  or they  could  be damaged. 
Perform  each  of the listed lubrication service items  at this mileage 
interval 
(or every 6 months, whichever  occurs  first). 
0 Check readfront  axle  fluid level and add fluid as needed. Check 
constant  velocity joints and axle  seals  for  leaking. 
*'g 
DATE SERVICED BY: ACTUAL MILEAGE 
7-14 
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Maintenance  Schedule I - Gasoline  Engines  With 
Light  Duty  Emissions 
12,000 Miles (20 000 km) 
0 Change  engine  oil and filter (or every 3 months, whichever  occurs 
first). 
An  Emission  Control  Sewice. 
0 Lubricate the front  suspension,  king pin bushings, steering linkage, 
transmission  shift  linkage,  transfer  case  shift linkage, parking brake 
cable  guides,  rear driveline  center  splines,  front  axle propshaft splines, 
brake  pedal springs  and clutch pedal  springs. Ball  joints and lung  pin 
bushings  should not  be lubricated  unless their temperature  is 
10" F 
(-12" C), or higher.  When  weather  is cold,  let the ball  joints and king 
pin  bushings  warm up  before  lubrication  or they  could  be damaged. 
Perform each  of the listed lubrication  service  items at this mileage 
interval  (or every 
6 months, whichever  occurs  first). 
0 Check  readfront axle fluid level and  add fluid as needed. Check 
constant  velocity joints and axle  seals  for  leaking. 
** 
I DATE I ACTUALMILEAGE I SERVICED BY: I 
15,000 1 Ies (25 000 km) 
0 Change  engine  oil and  filter  (or  every 3 months, whichever  occurs 
first). 
An Emission  Control  Service. 
Lubricate  the front  suspension,  king pin bushings,  steering linkage, 
transmission  shift  linkage,  transfer  case  shift linkage,  parking brake 
cable  guides,  rear driveline  center  splines,  front  axle  propshaft splines, 
brake pedal  springs  and  clutch pedal springs.  Ball joints  and  king pin 
bushings  should not  be lubricated unless their temperature  is  10" 
F 
(-1 2 O C), or higher.  When  weather  is cold,  let  the ball joints and king 
pin  bushings  warm  up before lubrication  or they could be  damaged. 
Perform  each 
of the listed lubrication  service items at this mileage 
interval  (or every 
6 months,  whichever  occurs  first). 
0 Inspect air cleaner  filter  if you are driving  in dusty  conditions.  Replace 
filter  if necessary. 
An Emission  Control  Service. 
(Continued) 
7-15 
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Maintenance  Schedule I - Gasoline  Engines  With 
Light  Duty  Emissions 
(Continued) 
0 Check  rear/front axle fluid level and add fluid as needed. Check 
constant  velocity joints and axle  seals  for  leaking. 
'v'F 
0 For 2-Wheel  Drive vehicles only: Clean and repack the front wheel 
bearings  (or at each brake relining, whichever  occurs  first). 
I H I 
I DATE I ACTUALMILEAGE I SERVICED BY: 
18,000 Miles (30 000 km) 
ll Change  engine oil and filter  (or every 3 months, whichever  occurs 
first). 
An Emission Corltrol Service. 
IJ Lubricate  the front  suspension,  king pin bushings,  steering  linkage, 
transmission  shift linkage, transfer case shift linkage, parking brake 
cable  guides.  rear driveline center splines. front axle propshaft splines, 
brake  pedal springs  and clutch  pedal springs.  Ball joints  and  king 
pin 
bushings  should not  be lubricated unless their temperature  is 10" F 
(-12" C), or higher.  When weather  is cold.  let  the  ball  joints and king 
pin  bushings  warm 
up before lubrication  or they  could  be damaged. 
Perform each  of the  listed  lubrication service items  at this mileage 
interval  (or every 
6 months, whichever occurs  first). 
c3 Check  readfront axle fluid  level  and add fluid  as needed. Check 
constant  velocity joints and axle seals  for leaking. 
-&-'&- .> .!, 
D Rotate  tires. See "Tire Inspection and Rotation" in the  Index  for proper 
rotation pattern  and additional  information. 
DATE SERVICED BY: ACTUAL MILEAGE 
7- 16 
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