Page 233 of 402
Downloaded from www.Manualslib.com manuals search engine 9. Shut  the  engine off and  replace the pressure  cap. 
Be  sure  the  arrows  on  the cap  line  up like this. 10. Then fill the coolant  recovery  tank to the 
proper level. 
For a  complete  drain, 
flush and refill,  see your Chevrolet 
dealer  or  a Chevrolet  Service  Manual. 
To purchase  a 
service  manual,  see “Service and  Owner Publications” 
in  the Index. 
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        Page 257 of 402

Downloaded from www.Manualslib.com manuals search engine Be careful  not to  spill  gasoline.  Clean  gasoline from 
painted  surfaces  as  soon as possible.  See “Cleaning the 
Outside 
of Your  Chevrolet” in the Index. 
When  you 
put the  cap  back on, turn it  to the right until 
you hear  at least  three  clicks. Make  sure  you fully install 
the  cap.  The  diagnostic system  can determine  if the fuel 
cap  has been left  off 
or improperly installed. This would 
allow  fuel  to  evaporate  into  the  atmosphere.  See 
“Malfunction Indicator  Lamp”  in the Index. 
NOTICE: 
If you  need a new  cap,  be sure  to  get the  right 
type.  Your  dealer can get one  for you. 
If you  get 
the  wrong  type,  it may  not 
fit and your  fuel tank 
and  emissions  system  might be damaged. 
Checking Things Under the Hood 
I A CAUTIC 1: I 
- 
An  electric  fan  under  the  hood can start  up  and 
injure  you  even  when  the engine  is not running. 
Keep  hands,  clothing  and tools  away from any 
underhood electric fan. 
Things  that  burn  can get on hot  engine  parts  and 
start 
a fire.  These  include liquids  like  gasoline, 
oil,  coolant,  brake fluid, windshield  washer and 
other  fluids,  and plastic  or rubber.  You or others 
could  be  burned. Be careful  not  to  drop  or  spill 
things  that will burn  onto 
a hot engine. 
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        Page 259 of 402
Downloaded from www.Manualslib.com manuals search engine When you open the hood of the 3800 L36 (Code K) you'll see: 
A. Engine Coolant Reservoir 
B. Battery 
C. Oil Fill Cap 
D. Automatic Transmission 
Dipstick (Option) 
E. Engine Fan 
F.  Windshield  Washer Reservoir 
G. Power Steering Reservoir 
H. Engine Oil Dipstick 
I. Brake Fluid Reservoir 
J. Clutch Fluid Reservoir 
K. Air Cleaner 
(if equipped) 
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        Page 260 of 402
Downloaded from www.Manualslib.com manuals search engine When you open the hood of the 5.7L LT1 (Code P) you'll "ee: 
A. Engine  Coolant  Reservoir 
B. Power  Steering  Reservoir 
C.  Engine  Oil  Dipstick 
D.  Battery 
.. . 
E.  Engine  Oil Fill  Cap 
F. Automatic Transmission 
Dipstick  (Option) 
G. Fan 
H. Windshield  Washer Reservoir 
I. Brake Fluid Reservoir 
J. Clutch  Fluid  Reservoir (if equipped) 
K. Air Cleaner 
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        Page 277 of 402

Downloaded from www.Manualslib.com manuals search engine What to Use 
Standard  Differential 
Use  Axle  Lubricant  (GM Part No. 1052271)  or 
SAE 80W-90  GL-5  gear  lubricant. 
Limited-Slip  Differential 
To add  lubricant  when  the  level  is  low,  use  Axle 
Lubricant  (GM 
Part No. 12345977). To completely  refill 
after  draining,  add  2  ounces  (59 
ml) of  Limited-Slip 
Differential  Lubricant  Additive  (GM 
Part No. 1052358). 
Then  fill to  the  bottom 
of the  filler  plug  hole  with  Axle 
Lubricant  (GM  Part 
No. 12345977). 
Engine Coolant 
The  cooling  system  in  your  vehicle  is filled  with  new 
DEX-COOL 
TM (orange-colored,  silicate-free)  engine 
coolant.  This  coolant  is  designed  to  remain  in  your 
vehicle  for 
5 years  or  100,000  miles  (166 000 km), 
whichever  occurs  first. 
The  following  explains  your  cooling  system  and  how  to  add  coolant  when  it  is low.  If  you  have  a  problem  with 
engine  overheating 
or if  you  need  to  add  coolant  to  your 
radiator,  see  “Engine  Overheating”  in  the  Index. 
A 50/50  mixture  of  water  and  the  proper  coolant for 
your  Chevrolet  will: 
Give  freezing  protection  down  to  -34°F (-37°C). 
0 Give  boiling  protection  up  to  265 “F (1 29°C). 
Protect  against  rust  and  corrosion. 
Help  keep  the  proper  engine  temperature. 
Let the  warning  lights  and  gages  work  as  they  should. 
NOTICE: 
When  adding  coolant  it  is  important  that you use 
DEX-COOL (orange-colored,  silicate-free) 
coolant  meeting 
GM Specification 6277M. 
If silicated coolant  is  added  to  the  system, 
premature  engine,  heater  core 
or radiator 
corrosion  may  result. 
In addition,  the  engine 
coolant 
will require  change  sooner -- at 
30,000 miles (50 000 km)  or 24 months, 
whichever  occurs  first. 
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I b   
         
        
        
     
        
        Page 278 of 402

Downloaded from www.Manualslib.com manuals search engine What  to Use 
Use a  mixture  of one-half clean water (preferably 
distilled)  and one-half 
DEX-COOL TM (orange-colored, 
silicate-free)  antifreeze  that meets 
GM Specification 
6277M, which won’t  damage  aluminum  parts. Use 
GM Engine  Coolant  Supplement  (sealer) (GM Part 
No. 3634621) with any  complete  coolant  change. If you 
use this  mixture, you don’t need to add anything  else. 
Adding only plain  water  to  your cooling  system 
can  be dangerous. Plain  water, or some  other 
liquid  like  alcohol,  can boil  before  the  proper 
coolant  mix  will.  Your  vehicle’s  coolant warning 
system  is set  for  the  proper  coolant mix. With 
plain  water  or the  wrong  mix,  your engine  could 
get  too  hot  but  you  wouldn’t  get  the overheat 
warning.  Your  engine  could  catch  fire  and you or 
others  could be  burned.  Use a 
50/50 mix  of clean 
water  and 
DEX-COOL TM (orange-colored, 
silicate-free) antifreeze. 
1 
NOTICE: 
I 
If you  use  an improper  coolant  mix,  your 
engine  could  overheat and be badly damaged. 
The  repair  cost  wouldn’t  be  covered  by  your 
warranty. 
Too much  water  in the mix can freeze 
and  crack  the engine,  radiator,  heater  core and 
other  parts. 
If  you  have to add coolant more than four  times  a year, 
have  your dealer  check  your  cooling  system. 
NOTICE: 
If you  use the proper  coolant,  you  don’t  have to 
add  extra  inhibitors or additives  which  claim  to 
improve  the system.  These  can be harmful. 
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        Page 279 of 402
Downloaded from www.Manualslib.com manuals search engine Checking  Coolant 
When your engine  is cold,  check  the dipstick  on the  cap 
of the coolant recovery tank.  The coolant  level should 
be  at 
COLD, or a little  higher.  When your engine is 
warm, the level  on the dipstick should be 
up to HOT, or 
a little  higher. 
1 
If this light comes  on, it 
means you’re low  on 
5.7L LTl Engine Only 
Adding Coolant to e Recovery Tank 
If you need more coolant, add the  proper mix at the 
coolant recovery tank, but only when your  engine  is 
cool. 
If the tank  is  very low or empty, also add coolant 
to  the radiator.  See “Engine Overheating”  in the Index 
for information. 
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        Page 280 of 402
Downloaded from www.Manualslib.com manuals search engine Turning the radiator pressure  cap when  the 
engine  and  radiator  are  hot 
can allow steam 
and  scalding  liquids 
to blow out and  burn you 
badly.  Never turn the pressure  cap -- even a 
little 
-- when  the engine  and  radiator  are  hot. 
Add  coolant mix at the recovery  tank, but be  careful  not 
to  spill  it. 
' 4 CAUTIOh; 
You can  be burned  if  you spill  coolant  on  hot 
engine  parts. Coolant  contains  ethylene  glycol, 
and  it 
will burn if the engine  parts  are  hot 
enough.  Don't  spill  coolant  on  a hot engine. 
Radiator Pressure Cap (All Engines) 
NOTICE: ~~ - 
Your  radiator  cap is an 18 psi (124 kPa) 
pressure-type 
cap and must  be tightly  installed  to 
prevent  coolant 
loss and possible  engine  damage 
from  overheating.  Be sure  the arrows  on the  cap 
line 
up with  the overflow  tube on the  radiator 
filler  neck. 
When you replace your radiator pressure  cap, an AC@ 
cap is recommended. 
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