Page 237 of 372
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 or have proper
venting, and your fuel tank and emissions system
might be damaged.
Checking Things Under the Hood
/1 CAUTION:
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.
6-7
Page 281 of 372

Using Solvent-Type Cleaner on Fabric
First, see if you have to use solvent-type cleaner at all.
Some spots and stains will clean off better with just
water and mild soap.
-. If you need to use a solvent:
0 Gently scrape excess soil from the trim material with a
clean, dd1 knife or scraper. Use very little cleaner, light
pressure and clean cloths (preferably cheesecloth). Cleaning should start at the outside of the stain,
“feathering”’ toward
the center. Keep changing
to a clean section of the cloth.
0 When you clean a stain from fabric, immediately
dry the area with a blow dryer
to help prevent a
cleaning ring.
Fabric Protection
Your vehicle has upholstery and carpet that has been .
treated with Scotchgard“ Fabric Protector, a 3M
product.
It protects fabrics by repelling oil and water,
which are the carriers of most stains. Even
with this
protection, you still need to clean your upholstery and
carpet often to keep
it looking new.
Further information on cleaning is available by calling
1-800-433-3296
(in Minnesota, 1-800-642-61 67).
Special Cleaning Problems
Greasy or Oily Stains
Stains caused by grease, oil, butter, margarine, shoe
polish, coffee with cream, chewing gum, cosmetic
creams, vegetable oils, wax crayon,
tar and asphalt can
be removed as follows:
1. Carefully scrape off excess stain.
2. Follow the solvent-type instructions
described earlier.
3. Shoe polish, wax crayon, tar and asphalt will stain
if left on a vehicle’s seat fabric. They should be
removed as soon as possible.
Be careful, because
the cleaner will dissolve them and may cause them
to spread.
6-5 1
Page 282 of 372

Non-Greasy Stains
Stains caused by catsup, coffee (black), egg, fruit, fruit
juice, milk, soft drinks, wine, vomit, urine and blood can
be removed as follows:
1.
2.
3.
4.
Carefully scrape off excess stain, then sponge the
soiled area with cool water.
If a stain remains, follow the foam-type instructions
described earlier.
If an odor lingers after cleaning vomit or urine,
treat the area with
a waterhaking soda solution:
1 teaspoon (5 ml) of baking soda to 1 cup (250 ml)
of lukewarm water.
If needed, clean lightly with solvent-type cleaner.
Combination Stains
Stains caused by candy, ice cream, mayonnaise, chili
sauce and unknown stains can be removed as follows:
0 Carefully scrape off excess stain, then clean with
0 If a stain remains, clean it with solvent-type cleaner.
cool
water and allow to dry.
Cleaning Vinyl
Use warm water and a clean cloth.
0 Rub with a clean, damp cloth to remove dirt. You
may have to do
it more than once.
0 Things like tar, asphalt and shoe polish will stain if
you don’t get them off quickly. Use a clean cloth and
a GM VinylLeather Cleaner or equivalent product.
Cleaning Leather
Use a soft cloth with lukewarm water and a mild soap or
saddle soap.
0 For stubborn stains, use a GM Vinylkeather Cleaner
0 Never use oils, varnishes, solvent-based or abrasive
or equivalent product.
cleaners, furniture polish or shoe polish on leather.
0 Soiled leather should be cleaned immediately. If dirt is
allowed to work into the finish, it can
harm the leather.
6-52
Page 299 of 372

Normal Maintenance Replacement
Parts
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.
Oil Filter..
......................... PF52
Air Cleaner Filter
.................. A 1 163C
Automatic Transmission
Filter Kit
............ ... 24200796
PCV Valve
...................... CV774C
Spark Plugs
....................... 41-932
Spark
Plug Gap ...... 0.060 inches (1.52 mm) Fuel
Filter
...
Radiator Cap .......
Wiper Blades (Front) .
Wiper Blade (Rear) . .
. . GF481
............ RC27
. . 22110158, Pin Type
. . 22154396, Pin Type
Vehicle Dimensions*
Wheelbase .............. 189.8 inches (482 cm)
Width
................... 77.5 inches (1 96.8 cm)
Height.
.................. 76.2 inches (193.5 cm)
Wheelbase
.............. 11 1.2 inches (282.4 cm)
Front Tread Width
......... 65.1 inches (165.4 cm)
Rear Tread Width
........ 65.1 inches (1 65.4 cm)
*Figures reflect base equipment only.
6-69