GMC SIERRA 1995 Owners Manual

I Maintenance Schedule II - Diesel Engines
30,000 Miles (48 000 km)
0
0
0
Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Service.
Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs. Ball joints and king pin
bushings should not be lubricated unless their temperature is
10" F
(-12" C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each of the listed lubrication service items at this mileage
interval (or every 12 months, whichever occurs first).
For vehicles equipped with a 5-speed manual transmission with deep
low: Lubricate the clutch fork ball stud through the fitting
on the clutch
housing. Lubricant must be added
spring1-y to the fitting, as very little
is required to lubricate the ball stud surface. Do not add lubricant more
often than specified.
Too much lubricant will damage the clutch
assembly.
Drain, flush and refill the cooling system with new coolant (or every 24
months, whichever occurs first). See "Engine Coolant" in the Index for
what to use.
An Ernission Control Service.
Also inspect the hoses and replace them if they are cracked, swollen or
deteriorated. Tighten all hose clamps (except constant tension clamps).
Remove debris and clean the outside of the radiator and air
conditioning condenser. Wash the radiator neck.
To ensure proper
operation, pressure test the radiator and cap.
Replace air cleaner filter.
An Emission Coratrol Service.
For 2-Wheel Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
Replace fuel filter. Replace filter sooner
if it is clogged:?
Inspect shields and underhood insulation for damage or looseness.
Adjust
or replace as required. This is a Noise Emission Control
Service. Applicable only to vehicles sold in the United States.
(Continued)
7-85
ProCarManuals.com

I Maintenance Schedule II - Diesel Engines
(Continued)
0 Check the air intake system installation to assure that gaskets are
properly sealed and that all hose connections, fasteners and other
components are tight. Also check to be sure that the air cleaner housing
is properly seated, the cover fits tightly and the wing nuts are tight.
Tighten connections and fasteners or replace damaged parts as
necessary.
This is a Noise Emission Control Service. Applicable only
to vehicles sold in the United States.
0 If your engine has a thermostatically controlled cooling fan, inspect all
hoses and ducts for proper hook-up (or every 12 months, whichever
occurs first). Be sure the valve works properly.
This is a Noise
Emission Control Service. Applicable only to vehicles sold in t\
he
United States.
0 Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.
**
I DATE I ACTUALMILEAGE I SERVICED BY: I
35,000 Miles (56 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Service.
Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs, Ball joints and king pin
bushings should not be lubricated unless their temperature is
10” F
(-12” C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each of the listed lubrication service items at
this mileage
interval
(or every 12 months, whichever occurs first).
Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. See “Tires”
in the Index.
(Continued)
7-86
ProCarManuals.com

I Maintenance Schedule II - Diesel Engines I
(Continued)
0 Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.
*'%
I DATE I ACTUALMILEAGE I SERVICED BY:
40,000 Miles (64 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Service.
0 Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs.
Ball joints and king pin
bushings should not be lubricated unless their temperature is
10" F
(-1 2" C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each
of the listed lubrication service items at this mileage
interval (or every
12 months, whichever occurs first).
0 Inspect shields and underhood insulation for damage or looseness.
Adjust or replace
as required. This is a Noise Emission Control
Service. Applicable only to vehicles sold in the United States.\

0 Check the air intake system installation to assure that gaskets are
properly sealed and that all hose connections, fasteners and other
components are tight.
Also check to be sure that the air cleaner housing
is properly seated, the cover fits tightly and the wing nuts are tight.
Tighten connections and fasteners or replace damaged parts
as
necessary. This is a Noise Emission Control Service. Applicable only
to vehicles sold in the United States.
0 If your engine has a thermostatically controlled cooling fan, inspect all
hoses and ducts for proper hook-up (or every
12 months, whichever
occurs first). Be sure the valve works properly.
This is a Noise
Emission Control Service. Applicable only
to vehicles sold in the
United States.
(Continued)
7-87
ProCarManuals.com

I Maintenance Schedule II - Diesel Engines
( Con t in ~t ed)
0 Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.
**
I DATE I ACTUALMILEAGE I SERVICED BY: I
45,000 Miles (72 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Service.
cj Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs. Ball joints and king
pin
bushings should not be lubricated unless their temperature is 10" F
(-12" C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each of the listed lubrication service items at this mileage
interval (or every
I2 months, whichever occurs first).
Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. See "Tires"
in the Index.
0 Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.
$:'%
DATE SERVICED BY: ACTUAL MILEAGE
1-88
ProCarManuals.com

50,000 Miles (80 000 km)
0
0
Change engine oil and filter (or every 3 months, whichever occurs
first). AII Emissiou Cor1trd Senicv.
Lubricate the front suspension, king pin bushings. steering linkage,
transmission shift linkage, transfer case shift linkage. parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs.
Ball joints and king pin
bushings should not be lubricated unless their temperature is
10" F
(- 12" C), or higher. When weather is cold, let the ball -joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each of the listed lubrication service items at this mileage
interval (or every
12 months, whichever occurs first).
Change automatic transmission fluid and filter
if the vehicle is mainly
driven under one or more
of these conditions:
0
0
a
0
In heavy city traffic where the outside temperature regularly
reaches
90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such
as found in taxi, police or delivery service. If you do
not use your vehicle under any
of these conditions, the fluid
and filter do not require changing.
Manual transmission fluid
doesn't require change.
Inspect shields and underhood insulation for damage or looseness.
Adjust or replace as required.
This is a Noise Emission Control
Service. Applicable only to vehicles sold in the United States.
Check the air intake system installation to assure that gaskets are
properly sealed and that all hose connections, fasteners and other
components are tight.
Also check to be sure that the air cleaner housing
is properly seated, the cover fits tightly and the wing nuts are tight.
Tighten connections and fasteners or replace damaged parts as
necessary.
This is a Noise Emission Control Service. Applicable only
to vehicles sold in the United States.
If your engine has a thermostatically controlled cooling Fan, inspect all
hoses and ducts for proper hook-up (or every
12 months. whichever
occurs first). Be sure the valve works properly.
This is a Noise
Emission Control Service. Applicable only to vehicles sold in t\
he
United States.
7-89
ProCarManuals.com

Maintenance Schedule II - Diesel Engines I-
(Continued)
0 Check rear/fi-ont axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.
‘!”:’
DATE
SERVICED BY: ACTUAL MILEAGE
r
55,000 Miles (88 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Sen7ic.e.
0 Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs. Ball joints and king pin
bushings should not be lubricated unless their temperature is
10” F
(-12” C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each of the listed lubrication service items at this mileage
interval (or every
I2 months, whichever occurs first).
0 Rotate tires. See “Tire Inspection and Rotation’‘ in the Index for proper
rotation pattern and additional information. See “Tires”
in the Index.
0 Check rear/front axle fluid level and add i-luid as needed. Check
constant velocity joints and axle seals for leaking.
-I--’- .:. +
DATE I ACTUALMILEAGE I SERVICED BY:
~~~
7-90
ProCarManuals.com

60,000 Miles (100 000 km)
o
r
0
0
0
0
E
Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emissim~ Control Ser~~ice.
Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage. transfer case shift linkage. parking brake
cable guides. rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs. Ball joints and king pin
bushings should
not be lubricated unless their temperature is 10" F
(-12" C). or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each
of the listed lubrication service items at this mileage
interval (or every 12 months, whichever occurs first).
For vehicles equipped with a 5-speed manual transmission
with deep
low: Lubricate the clutch fork ball stud through the fitting
on the clutch
housing. Lubricant must be added
.spari11gl~* to the fitting, as very little
is required to lubricate the ball stud surface. Do not add lubricant more
often than specified.
Too much lubricant will damage the clutch
assembly.
Drain, flush and refill the cooling system with new coolant (or every 24
months. whichever occurs first). See "Engine Coolant''
in the Index for
what
to use. Ar? Emissioll Cor1trol Service.
Also inspect the hoses and replace them if they are cracked, swollen or
deteriorated. Tighten all hose clamps (except constant tension clamps).
Remove debris and clean the outside
of the radiator and air
conditioning condenser. Wash
the radiator neck. To ensure proper
operation, pressure test the radiator and cap.
Replace air cleaner filter.
An Emission Control Set-l*icv.
For 2-Wheel Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
Check the crankcase depression regulator valve system for any worn,
plugged or collapsed hoses. See service manual.
AIZ E~ui.ssio~? Co11troI
ScJr-\,ic*e.
Replace fuel filter. Replace filter sooner if it is clogged.-!-
Check the
EGR System (if equipped) (except Code F engine) as
described in the service manual. At7 EIII~SS~OII Control Service.
(C~)11tin~d)
7-93
ProCarManuals.com

(Continued)
0 Inspect accessory drive (serpentine) belt for cracks, fraying and wear
and check belt for proper tension. Adjust or replace belt as needed.
An
Emission Control Service.
0 Inspect shields and underhood insulation for damage or looseness.
Adjust or replace as required.
This is a Noise Emission Control
Service. Applicable only to vehicles sold in the United States.\

0 Check the air intake system installation to assure that gaskets are
properly sealed and that all hose connections, fasteners and other
components are tight. Also check to be sure that the air cleaner housing
is properly seated, the cover fits tightly and the wing nuts are tight.
Tighten connections and fasteners or replace damaged parts as
necessary.
This is a Noise Emission Control Service. Applicable only
to vehicles sold in the United States.
0 If your engine has a thermostatically controlled cooling fan, inspect all
hoses and ducts for proper hook-up (or every
12 months, whichever
occurs first). Be sure the valve works properly.
This is a Noise
Emission Control Service. Applicable only to vehicles sold in t\
he
United States.
0 Check the exhaust pressure regulator valve for proper operation;
correct any binding. Inspect hoses for cracks, chafing or decay. Replace
parts as needed.
An Emission Control Service.
0 Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.
**
DATE ACTUAL MILEAGE SERVICED BY:
7-92
ProCarManuals.com

Part B: Owner Checks and Services
Listed below are owner checks and services which should be performed at
the intervals specified to help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once. Whenever any fluids
or lubricants are added to your vehicle, make sure they are the proper ones,
as shown in Part D.
At the First 100, 1,000 and 6,000 Miles (160, I 600 and
IO 000 km)
For vehicles with dual wheels, check dual wheel nut torque. For proper
torque, see “Wheel
Nut Torque’’ in the Index.
At Each Fuel Fill
Engine Oil Level
Check the engine oil level and add the proper oil if necessary. See “Engine
Oil”
in the Index for further details.
Engine Coolant Level
Check the engine coolant level and add the proper coolant mix if necessary.
See ”Coolant”
in the Index for further details.
Windshield Washer Fluid Level
Check the windshield washer fluid level in the windshield washer tank and
add the proper fluid if necessary. See ”Windshield Washer Fluid” in the
Index for further details.
At Least Once a Month
Tire Inflation
Check tire inflation. Make sure tires are inflated to the pressures specified
on the Certification/Tire label which is located on the rear edge of the
driver’s door or on the incomplete vehicle document in the cab. See “Tires”
in the Index for further details.
7-93
ProCarManuals.com

Cassette Deck
Clean cassette deck. Cleaning should be done every 50 hours of tape play.
See “Audio Systems”
in the Index for further details.
At Least Once a Year
Key Lock Cylinders
Lubricate the key lock cylinders with the lubricant specified in Part D.
Body Lubrication
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.
Starter Switch
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. Before you start, be sure you have enough room around the vehicle. It
should be parked
on a level surface.
2. 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.
3. 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.
7-94
ProCarManuals.com