2003 GMC YUKON DENALI fuel pressure

Part C: Periodic Maintenance
Inspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall).
You should let your dealer’s
service department or other qualified service center do
these jobs. Make sure any necessary repairs are
completed at once.
Proper procedures
to perform these services may be
found in a service manual. See Service Publications
Ordering Information on page
7- IO.
Steering and Suspension Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which
could cause a heat build-up in the floor pan or could let
exhaust fumes into the vehicle. See Engine Exhaust
on page 2-29.
Fuel System Inspection
Engine Cooling System Inspection
Inspect the complete fuel system for damage or leaks.
Inspect the hoses and have them replaced
if they
are cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
Transfer Case and Front Axle
(All-Wheel Drive) Inspection
Every 12 months, or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary.
A fluid loss could indicate a problem.
Check and have it repaired,
if needed. Check vent
hose at transfer case for kinks and proper installation.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. You may need
to
have your brakes inspected more often if your driving
habits or conditions result in frequent braking.
6-1 4

Exit Lighting ........................................ 3-16
Extender, Safety Belt
....................................... 1-47
Exterior Lamps
......................... ~ ~ ................ 3-1 3
FabricKarpet
...
Engine Air Cleaner ..............................
Finding a P TY Station (RDS and XMTM) .....
Filter
Finding a Station
....................................
F
....
Finish Care
Finish Damage
................................
Fixed Mast Antenna .........................
Flash-to-Pass ...................................
Flat Tire .........................................
Flat Tire, Changing ..........................
Fluid
Automatic Transmission
.................
Power Steering ............................
Windshield Washer .......................
-
.....................................
..
.....
...
.... 5-78
.... 5-17
.... 3-63
.... 3-61
.... 5-81
.... 5-83
.... 3-89
...... 3-8
.... 5-63
............. 5-63
.......... 5-20
.......... 5-34
.......... 5-34
FM Stereo
..................................................... 3-87
Fog Lamps
.................................................... 3-1 5
Folding the Seatback ....................................... 1-17
Folding the Seatbacks
............................. 1-12, 1-22
Folding the Seatbacks (60/40 Split Bench Seat) .... 1-9
Following Distance
.......................................... 4-53
Footnotes
........................................ ......... 6-5
Front Axle
.................................... ... 5-47 Frontal
Air Bags
...................................... 1-77
Fuel
............................................................... 5-5
Additives ...................................................... 5-6
California Fuel
.............................................. 5-6
Filling Your Tank
........................................... 5-7
Fuels in Foreign Countries
.......................... 5-6
Gasoline Octane
....................................... 5-5
Gasoline Specifications .................................. 5-5
System Inspection ....................................... 6-14
Filling
a Portable Fuel Container
..................... 5-9
Gage
............................. .................... 3-42
Low Warning Light
....................................... 3-42
Fuel Information Button
.................................... 3-45
FUEL LEVEL LOW
......................................... 3-55
Fuses
Fuses and Circuit Breakers
........................... 5-87
Windshield Wiper
......................................... 5-87
G
Gage
Engine Coolant Temperature
............. .... 3-36
Fuel
...................................................... 3-42
Oil Pressure
........................................... 3-40
Speedometer
.......................................... 3-30
Tachometer
............................................. 3-30
Transmission Temperature
......................... 3-37
Voltmeter Gage ....................................... 3-34
Garage Door Opener
....................................... 2-38
6

Gasoline Octane
........................................................ 5-5
Gate Operator and Canadian Programming ........ 2-40
Glass surfaces 3-o~
Glove Box ..................................................... 2-42
GM Mobility Program for Persons with
Disabilities
................................... 7-5
Specifications ............................................... 5-5
rn r nn ...............................................
H
Hazard Warning Flashers ............................... 3-5
Head Restraints
........................................... 1-6
Headlamp High/Low-Beam Changer
.................... 3-8
Headlamps
.................................................... 5-49
Bulb Replacement
....................................... 5-49
Front Turn Signal, Sidemarker and Daytime
Running Lamps
........................................ 5-50
Halogen Bulbs ............................................ 5-49
Headphones
................................................... 3-77
Heated Seats
................................................... 1-4
Heating
......................................................... 3-23
Highway Hypnosis
........................................... 4-35
Hill and Mountain Roads
.................................. 4-35
Hitches
.......................................................... 4-52
HomeLink Transmitter, Programming
.................. 2-38
HomeLinkO Transmitter
............................ 2-38
Hood Checking Things Under
................................ 5-10
Release
..................................................... 5-1 0
Horn ............................................................... 3-6
How
to Add Coolant to the Coolant Surge Tank ...... 5-29
How
to Add Fluid ............................................ 5-22
How
to Check ........................................ 5-20, 5-56
How to Check Lhrizzri-it ................................... 5-48
How
to Check Power Steering Fluid .................. 5-34
How
to Use This Manual ...................................... ii
How to Wear Safety Belts Properly ................... 1-30
Hydroplaning
.................................................. 4-31
I
If No Steam Is Coming From Your Engine .......... 5-27
If Steam Is Coming From Your Engine ............... 5-26
If the Light is Flashing
..................................... 3-39
If the Light Is On Steady ................................. 3-39
If You Are Stuck in Sand, Mud, Ice or Snow
....... 4-41
If You Do Decide To Pull
A Trailer ..................... 4-48
If You’re Caught in a Blizzard
........................... 4-39
Ignition Positions
............................................. 2-18
Ignition Transmission Lock Check
...................... 6-13
Illuminated Visor Vanity Mirrors
......................... 2-15
Infants and Young Children, Restraints
............... 1-50
Inflation -- Tire Pressure ..................... ..... 5-55
Inspection
Brake System
............................................. 6-14
Engine Cooling System
................................ 6-14
Exhaust System
.......................................... 6-14
Fuel System
............................................... 6-14
Part C
- Periodic Maintenance ....................... 6-14
7