1996 GMC SIERRA clutch

Engine Fan Noise
Your vehicle has a clutched engine cooling fan. When the
clutch
is engaged, the fan spins fdster to provide more air
to cool the engine.
In most every day driving conditions,
the fan
is spinning slower and the clutch is not fully
engaged. This improves fuel economy and reduces fan
noise. Under heavy vehicle loading, trailer towing andor
high outside temperatures, the
fm speed increases as the
clutch more fully engages.
So you may hear an increase
in fan noise. This is normal and should not be mistaken
as the transmission slipping or making extra shifts.
It is
merely the cooling system functioning properly. The fan
will slow down when additional cooling is not required
and the clutch partially disengages.
You may also hear this
fm noise when you start
the engine.
It will go away as the fan clutch
partially disengages.
If a Tire Goes Flat
It’s unusual for a tire to “blow out” while you’re driving,
especially
if you maintain your tires properly. If air goes
out
of a tire, it’s much more likely to leak out slowly.
But if you should ever have a “blowout,” here are a few
tips about what
to expect and what to do:
If a front tire fails, the flat tire will create a. drag that
pulls the vehicle toward that side. Fake your foot off the
accelerator pedal and grip the steering wheel firmly.
Steer to maintain
lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like
a skid and
ITMY require the same correction you’d use in
a skid. In any rear blowout, remove your foot from the
accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to
go. It may be
very bumpy and
noisy, but you can still steer. Gently
brake to a stop
-- well off the road if possible.
If a tire goes tlat, the next part shows how to use your
jacking equipment to change
a flat tire safely.
5-20
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Noise Control System
The following information relates to compliance with
Federal noise emission standards for vehicles with
a
Gross Vehicle Weight Rating (GVWR) of more than
10,000 Ibs. (4 536 kg). The Maintenance Schedule
booklet provides information on maintaining
the noise
control system to minimize degradation
of the noise
emission control system during
the life of your vehicle.
The noise control system warranty is given
in your
Warranty booklet.
These standards apply only to vehicles
sold in the
United States.
Tampering With Noise Control
System Prohibited
Federal law prohibits the following acts or the
causing thereof:
1. The removal or rendering inoperative by any person,
other than for purposes of maintenance, repair or
replacement, of any device or element of design
incorporated into any new vehicle for the purpose
of
noise control. prior to its sale or delivery to the
ultimate purchaser or while
it is in use; or
2. The use of the vehicle after such device or element
of design has been removed or rendered inoperative
by any person.
Among those acts presumed
to constitute tampering are
the acts listed below.
Insulation:
Removal of noise shields or underhood insulation.
Engine:
Removal or rendering engine speed governor (if so
equipped) inoperative so as to allow engine speed to
exceed manufkcturer specifications.
Fan and Drive:
0 Removal of fan clutch (if so equipped) or rendering
clutch inoperative.
Removal of fan shroud (if so equipped).
Air Intake:
Removal of air cleaner silencer
@ Reversing air cleaner cover.
Exhaust:
Removal of muffler and/or resonator.
Removal of exhaust pipes and exhaust pipe clamps.
6-11
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How to Add Fluid
Here’s how to add fluid. Refer to the Maintenance
Schedule
to determine what kind of fluid to use. See
“Recommended Fluids and Lubricants” in the Index.
1. Remove the filler plug.
2. Add fluid at the filler plug hole. Add only enough
fluid to bring the fluid 1evel.u~ to tbe bottom
of the
filler plug hole.
3. Install the filler plug. Be sure the plug is fully seated.
Hydraulic Clutch
The hydraulic clutch system in your vehicle is
self-adjusting. A slight amount of play
(1/4 inch to
1/2 inch or 6 mm to 12 mm) in the pedal is normal.
It isn’t a good idea
to “top off’ your clutch fluid.
Adding fluid won’t correct a leak. A fluid loss in this
system could indicate a problem. Have the system
inspected and repaired.
When to Check and, What to Use
Refer to the Maintenance
Schedule, Owner Checks
and Services, to determine
how often you should
check the fluid level.in
your clutch master cylinder
reservoir and for the proper
fluid. See “Owner
Checks and Services” and
“Recommended Fluids and
Lubricants’’ in the Index.
How to Check
The proper fluid should be added if the level does not
reach the bottom
of the diaphragm when it’s in place in
the reservoir. See the instructions
on the reservoir cap.
6-23
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Automatic Transmission Check
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are
working properly. Look
for any other loose or damaged
safety belt system parts.
If you see anything that might
keep a safety belt system from doing its job, have
it
repaired. Have any torn or frayed safety belts replaced.
Also
look for any opened or broken air bag covers, and
have them repaired or replaced. (The air bag
system
does not need regular maintenance.)
Air Cleaner Filter Restriction Indicator Check
Your vehicle has an indicator on the engine that lets you
know when the air cleaner filter is dirty and needs to be
changed. Check indicator at least twice
a year or when
your
oil is changed. See “Air Cleaner” in the Index for
more information.
Manual Transmission Check
Check the transmission fluid level; add if needed. See
“Manual Transmission” in
the Index. A fluid loss may
indicate
a problem. Check the system and repair if needed. Check the transmission
fluid level; add if needed. See
“Automatic Transmission”
in the Index. A fluid loss
may indicate a problem. Check the system and repair
if needed.
Hydraulic Clutch System Check
Check the fluid level in the clutch reservoir. See
“Hydraulic Clutch Fluid”
in the Index. A fluid loss in
this system could indicate a problem. Have the system
inspected and repaired
at once.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified
in Part D.
Body Lubrication Service
Lubricate all fuel doors, body hood and body door
hinges, tailgate and tailgate handle pivot points, latches,
locks and folding seat hardware. Part
D tells you what to
use. More frequent lubrication may be required when
exposed to a corrosive environment.
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Starter Switch Check When
you are doing this check, the vehicle could
move suddenly.
If it does, you or others could be
injured. Follow the steps below.
1.
2.
3.
Before you start, be sure you have enough room
around the vehicle.
Firmly apply both the parking brake
(see “Parking
Brake” in the Index if necessary) and the regular brake.
NOTE: Do not use the accelerator pedal, and be
ready
to turn off the engine immediately if it starts.
On automatic transmission vehicles, try
to start the
engine in each gear. The starter should work only in
PARK (P) or NEUTRAL (N). If the starter works in
any other position, your vehicle needs service.
On manual transmission vehicles, put the shift lever
in NEUTRAL (N), push.the clutch down halfway
and
try to start the engine. The starter should work
only when the clutch is pushed down
all the way to
the floor.
If the starter works when the clutch isn’t
pushed all the way down, your vehicle needs service.
Brake-Transmission Shift Interlock (BTSI)
Check (Automatic Transmission)
I A CAUTION:
When you are doing this check, the vehicle could
move suddenly.
If it does, you or others could be
injured. Follow the steps below.
1.
2.
3.
Before you start, be sure you have enough
room around the vehicle. It should be parked
on
a level surface.
Firmly apply the parking brake (see “Parking Brake”
in the Index if necessary).
NOTE: Be ready to
apply the regular brake
immediately
if the vehicle begins to move.
With the engine off,
turn the key to the RUN
position, but don’t start the engine. Without applying
the regular brake, try
to move the shift lever out of
PARK (P) with normal effort. If the shift lever moves
out of PARK
(P), your vehicle’s BTSI needs service.
7-44
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Part D: Rea
Lubricants
NOTE: Fluids and
part number
or spe
GM dealer.
I USAGE
Engine Oil
(Gasoline
Engine)
mended Fluids and
ubricants identified below by name,
ification may
be obtained from your
FLUID/LUBRICANT
Engine oil with the American
Petroleum Institute Certified For
Gasoline Engines “Starburst”
symbol of the proper viscosity.
To
determine the preferred viscosity
for your vehicle’s engine, see
“Engine Oil” in the Index.
50/50 mixture of clean water
(preferably distilled) and GM
Goodwrench@ DEX-COOL” or
Havoline@
DEX-COOL TM
(orange-colored, silicate-free)
antifreeze conforming
to GM
Specification 6277M. See “Engine
Coolant” in the Index.
USAGE
Coolant
Supplement
Sealer
Hydraulic Brake
System
Hydraulic Clutch
System
~~
Parking Brake Cable Guides
~
Power Steering
System
FLUIDLUBRICANT
GM Part No. 3634621 or
equivalent with a complete flush
and refill.
Delco Supreme
1 l@ Brake Fluid
(GM Part
No. 1052535 or
equivalent
DOT-3 brake fluid).
Hydraulic Clutth Fluid (GM Part
No. 12345347 or equivalent).
Chassis lubricant
(GM Part
No. 1052497 or equivalent) or
lubricant meeting requirements
of
NLGI Grade 2, Category LB
or GC-LB.
GM Power Steering Fluid
(GM Part No. 1052884 - 1 pt.,
1050017
- 1 qt., or equivalent).
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Clock. Setting the ................................ 3-7
Clutch Fluid. Hydraulic
.......................... 6-23
Comfort Controls
................................ 3- I
Compact Disc Care ............................. 3-24
Compact Disc Player
....................... 3.15. 3.17
Compass. Rearview Mirror
with ................... 2-44
Console Storage
................................ 2-49
Control of
a Vehicle .............................. 4-5
Convex Outside Mirror .......................... 2-46
Coolant
....................................... 6-26
Heater. Engine
............................... 2- 12
RecoveryTank
............................... 5-14
Cooling System
................................ 5- 12
Courtesy Transportation
........................... 8-6
Cruise Control
................................. 2-36
Cupholders
.................................... 2-49
Customer Assistance Information
................... 8- I
Customer Satisfaction Procedure .................... 8- I
Customer Assistance for Text Telephone Users ......... 8-3
Damage. Finish
............................... 6-64
Damage. Sheet Metal
............................ 6-64
Daytime Running Lamps
......................... 2-40
Daytime Running Lamps Indicator Light
............ 2-67
Dead Battery
................................... 5-2
Defects. Reporting Safety ......................... 8-8
Defensive Driving ............................... 4- I
Defogger. Rear Window .......................... 3-6
Defog ing and Defrosting
......................... 3-5
Dolby B Noise Reduction 3- I4 8 .......................
Dome Lamps .................................. 2-42
Door Locks
....................................... 2-4
Storagepocket
............................... 2-51
Third
........................................ 2-3
Downshifting
.................................. 2-19
Driver Position ................................. 1-13
Driving
City
........................................ 4-33
Defensive
.................................... 4-1
Drunken ..................................... 4-2
Freeway
.................................... 4-34
Guidelines
.................................. 4-13
In a Blizzard ................................. 4-40
IntheRain
.................................. 4-30
Night
...................................... 4-28
Off-Road
................................... 4-13
OnCurves
................................... 4-8
On Grades While Towing
a Trailer ............... 4-57
On Hill and Mountain Roads
.................... 4-36
OnSnowandIce
............................. 4-38
Throughwater
............................... 4-32
WetRoads
.................................. 4-30
Winter
...................................... 4-38
With a Trailer
................................ 4-55
Drunken Driving ................................ 4-2
Easy Entry Seat
................................ 1-6
Electrical Equipment. Adding ........... 2.12. 3.23. 6-68
Electrical System
............................... 6-68
Electrochromic Day/Night Rearview Mirror .......... 2-44
9-3
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Gear Positions. Automatic Transmission ............. 2- 13
Gear Positions. Manual Transmission .......... 2- 17. 2- 18
GloveBox .................................... 2-46
Gross Axle Weight Rating
........................ 4-42
Gross Vehicle Weight Rating
...................... 4-42
Guide en FranCais
11 .. .................................
GVWR ....................................... 4-42
Halogen Bulbs
................................ 6-37
Hazard Warning Flashers
.......................... 5- 1
Headlamps .................................... 2-39
Bulb Replacement
....................... 6.38. 6.39
High/Low Beam Changer
...................... 2-34
OnReminder
................................ 2-39
Wiring
..................................... 6-68
Head Restraints
................................. 1-5
Hearing Impaired. Customer Assistance
.............. 8-3
Heating
........................................ 3-4
High-Beam Headlamps
.......................... 2-34
Highway Hypnosis
.............................. 4-36
Hill and Mountain Roads
......................... 4-36
Hitches. Trailer
................................. 4-54
Hood
Checking Things Under ......................... 6-6
Release
...................................... 6-7
Horn
......................................... 2-32
Hydraulic Clutch Fluid
........................... 6-23
Hydroplaning
.................................. 4-32 Ignition
Positions
............................... 2-9
Illuminated Entry
............................... 2-42
Inflation. Tire
.................................. 6-49
Inside Daymight Rearview Mirror
................. 2-43
Inspections
.................................... 7-46
Brakesystem
................................ 7-47
Drive Axle
.................................. 7-47
Exhaust Systems
............................. 7-46
Radiator and Heater Hose
...................... 7-46
Steering
.................................... 7-46
Suspension
.................................. 7-46
Throttle Linkage
.............................. 7-46
Transfer Case (Four-wheel Drive)
............... 7-47
Instrument Panel
............................... 2-54
Cleaning
.................................... 6-61
Cluster
..................................... 2-56
FuseBlock
.................................. 6-69
Intensity Control
............................. 2-42
Interior Lamps
................................. 2-42
.................................... J ack. Tire 5-22
Jump Starting
................................... 5-2
Key
Lock Cylinders Service ..................... 7-43
Key Release Button ............................. 2- IO
Keyless Entry System ............................ 2-5
Keys .......................................... 2-1
9'
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