Page 278 of 488
While  refueling, hang 
the cap  inside  the  fuel 
door. 
To take off the  cap,  turn it slowly to the left  (counterclockwise). 
-~ 
A CAUTION: 
If you  get  gasoline  on  yourself  and then something ignites  it, you 
could  be badly burned.  Gasoline can spray  out on  you  if  you 
1 open the  fuel filler cap  too  quickly.  This spray  can happen  if 
your  tank is nearly  full, and 
is more  likely  in  hot weather.  Open 
the 
fuel filler  cap slowly  and wait for any “hiss” noise to stop. 
Then  unscrew  the cap all the  way. 
Be careful not to spill gasoline. Clean gasoline from painted  surfaces  as 
soon as possible. See “Cleaning the Outside  of  Your Vehicle” in the Index. 
When 
you put the  cap back on, turn it to the right until you hear a clicking 
noise. 
1 NOTICE: 
If you  need a new cap,  be sure t.0 get  the right  type.  Your  dealer 
can  get  one  for you. 
If you  get  the wrong  type, it may  not fit or 
have  proper  venting,  and your  fuel tank  and emissions  system 
might  be  damaged. 
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        Page 312 of 488

Windshield  Wiper Blade Inserts 
To replace the 
windshield wiper 
blade insert, lift 
the 
wiper arm and  rotate 
the blade  until 
it is 
facing  away from the 
windshield. 
Unlatch  the end 
of the insert  from the holding clips. Remove the insert  and 
slide 
a new  one in place.  Make  sure  the blade is secured  in the clips. 
Air  Conditioning 
Every  now and  then have your  dealership  check  your air conditioning 
system to  be sure  it 
has not  lost  any cooling  ability. If you  think the system 
is not working  properly, have your  dealership check it out as soon as 
possi  bleb 
The  air  conditioning  will 
not work when the temperature  is below 40°F 
(4°C). 
Fluid Leak  Check 
After the vehicle has  been  parked for a while, inspect  the surface  under the 
vehicle  for  water, oil, fuel 
or other  fluids.  Water dripping  from the air 
conditioning  system after it has  been  used  is normal. 
If you notice fuel leaks 
or  fumes,  the causes  should be found and corrected at  once. 
Lock Cylinders 
To be sure  your locks operate properly, they  must be lubricated.  Your 
vehicle’s maintenance  schedule  will tell you  how  often to lubricate  them. 
See  “Recommended Fluids  and Lubricants”  in the Index  for 
the proper 
lubricant to use. 
You  should 
not use penetrating  oils because they could  wash out the factory 
installed  lubricant and cause 
the lock to bind.  De-icers  which  contain 
alcohol  could  also 
wash away the lubricant, so be sure  to lubricate  the lock 
after  using 
a de-icer of this type. 
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        Page 325 of 488

NOTICE: 
Don’t  let  anyone tell  you that  underinflation  or  overinflation  is 
all  right.  It’s  not. 
If’ your  tires  don’t  have  enough  air 
(underinflation) 
you can  get: 
0 Too much  flexing 
Too much  heat 
0 Tire  overloading 
Bad  wear 
Bad  handling 
0 Bad  fuel  economy. 
If your  tires  have  too  much  air  (overinflation), you can  get: 
Unusual wear 
Bad  handling 
Rough  ride 
Needless  damage from road  hazards. 
When to Check 
Check your tires once  a month or more. Also, check the  tire pressure  of the 
spare  tire. 
How to Check 
Use a good quality  pocket-type gage to check tire pressure. Simply looking 
at the tires  will not tell  you the pressure, especially 
if you have  radial  tires 
- which  may look properly inflated even  if they’re  underinflated. 
If  your tires have  valve  caps, be sure to put them back  on. They help prevent 
leaks  by keeping  out  dirt and moisture. 
Tire  Inspection  and  Rotation 
Tires should be  inspected  every 6,000 to 8,000 miles (10 000 to 13 000 km) 
for any signs of unusual  wear. If unusual wear  is present, rotate your tires as 
soon as possible  and check  wheel alignment.  Also  check  for  damaged  tires 
or  wheels.  See  “When  it’s Time  for  New Tires” and  “Wheel Replacement” 
later  in this  section  for more  information. 
If your vehicle has dual rear 
wheels,  also  see 
“Dual Tire Operation”  later in this section. 
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        Page 347 of 488
Engine Identification - Gasoline  Engines 
Engine 
Type 
VIN  Code 
Fuel System 
Emissions 
5.0L 
V8 
H 
TBI?  LD 
"Light  Duty  Emissions  with 
8,500 lbs. (3 850 Kg) GVWR  and below. 
**Heavy  Duty Emissions over 8,500 lbs. (3 850 Kg) GVWR. 
?Throttle  Body Injection 
Engine Identification - Gasoline  Engines (cont.) 
Engine 
Type 
VIN  Code 
Fuel  System 
Emissions 7.4L 
V8 
N 
TBI? 
LD*/HD** 
"Light  Duty  Emissions with 8,500 lbs. (3 850 Kg) GVWR and below. 
""Heavy  Duty Emissions  over 
8,500 lbs. (3 850 Kg) GVWR. 
?Throttle  Body  Injection 
Engine Identification - Diesel  Engines 
Engine 
Type 
VIN Code 
Fuel System 
6.5L 
V8 
P 
Diesel 
6.5L 
V8 S 
Turbo  Diesel 
6.5L 
V8 
F 
Turbo Diesel 
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        Page 349 of 488
CranKcase  Capacity 
ENGINE 
4.3L 5  .OL 
5.7L“ 
6.5L 
6.5L 
6.5L 
7.4L>$ 
VIN 
Z 
€4 
K 
P 
S 
F 
N 
QUANTITY WITH 
FILTER* 
4.5 Quarts  (4.3  Liters) 
5 Quarts (4.8 Liters) 
5  Quarts  (4.8  Liters) 
7 Quarts (6.5  Liters) 
7  Quarts 
(6.5 Liters) 
7 Quarts  (6.5 Liters) 
7  Quarts  (6.5  Liters) 
After refill, the  level 
MUST be checked  as outlined  under “Engine  Oil  And 
Filter Recommendations” 
in Section 5. 
All  quantities  are approximate. 
“Add  one  additional quart  for 
C3500 HD Models. 
+Oil filter should  be changed  at EVERY oil change. 
Fuel  Tank  Capacity 
TYPE 
Gasoline/Diesel 
with  Short  Bed 
with  Long  Bed 
Crew  Cab 
Standard 
Chassis-Cab  Models 
Standard  (Side Tank) 
Optional  (Rear Tank) 
3500 HD Models 
Standard  (Side Tank) 
Optional  (Rear Tank) 
QUANTITY 
26 Gallons  (98  Liters) 
34 Gallons 
(1 28  Liters) 
34 Gallons 
(1 28 Liters) 
23  Gallons  (87  Liters) 
3 
1 Gallons (1 17 Liters) 
23 Gallons  (87  Liters) 
3 1 Gallons ( 117 Liters) 
All  quantities  are 
for a completely dry tank  and are approximate. 
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        Page 350 of 488
Service  Replacement  Part  and  Filter 
Recommendations 
- Gasoline  Engines 
Engine 4.3L 
VTN Z 
Oil Filter  PFS2 
Air  Cleaner 
A 178CW 
Filter 
PCV  Valve  CV789C 
Spark 
Plugs* .CR43TS 
Fuel Filter  GF48 
1 
Radiator  Cap 
RC36 
5.0L 
H 
PF12183- 
A348C 
cv774c 
.CR43TS 
GF48 
1 
RC36 
5.7L 
K 
PF1218q A348C 
cv774c 
.CR43TS  GF38 
1 
RC36 
+Four  Wheel  Drive  Vehicle 
- use a PFS2  oil filter 
Wse AC  copper-cored  resistor type spark plugs 
Service  Replacement  Part  and  Filter 
Recommendations 
- Diesel  Engines 
Engine 6.5L 6.5L 
VIN P S 
Oil Filter  PF1218 
PF1218 
Air  Cleaner  A644C 
A 1236C 
Fuel  Filter  TP 
1006  TP 
1 006 
Surge 
Tank Cap  RC33  RC33 
7.41 
N 
PF1218 
A348C 
cv774c 
.CR43TS  GF48 
I 
RC36 
6.51 
F 
PF1218 
A 1236C 
TP 
I006 
RC33 
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