1995 GMC SIERRA fuel pressure

Maintenance Schedule I - Gasoline Engines Heavy
Duty Emissions
(Continued)
0
0
0
0
0
0
0
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 Emission 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. Replace filter more often under dusty
conditions.
An Emission Control Sewice.
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.?
Adjust timing
to underhood label specifications. Inspect the inside and
outside
of the distributor cap and rotor for cracks, carbon tracking and
corrosion. Clean or replace as needed.
An Emission Control Service.
This is a Noise Emission Control Service.
If your vehicle has a thermostatically controlled air cleaner, inspect all
hoses and ducts for proper hook-up. Be sure the valve works properly.
An Emission Control Service. This is a Noise Emission Control
Service.
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.
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.
(Continued)
7-47
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Maintenance Schedule II - Gasoline Engines With
Heavy Duty Emissions
24,000 Miles (40 000 km)
0
Change engine oil and filter (or every 12 months, whichever occurs
first).
AI? Emission Control Senice.
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).
Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.'k'*
Inspect engine accessory drive belts
(or every 24 months. whichever
occurs first).
An Emission Control Service.
Drain, flush and refill cooling system (or every 24 months, whichever
occurs first). See "Engine Coolant'' in the Index for what
to use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck.
Pressure test the cooling system and pressure cap.
An Enzission Control
Service.
Replace air cleaner filter. An Ettzissiorz Control Service.
Replace fuel filter. An Emission Control Service.
DATE SERVICED BY: ACTUAL MILEAGE L
i
7-55
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I Maintenance Schedule I - Diesel Engines
(Continued)
I7 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. Auz Emissiolz 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.
0 Replace air cleaner filter. Replace filter more often under dusty
conditions.
An Emission Control Service. #’
0 For 2-Wheel Drive vehicles only: Clean and repack the front wheel
0 Replace fuel filter. Replace filter sooner if it is clogged.?
bearings
(or at each brake relining, 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.\

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.
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
7-70
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I Maintenance Schedule I - Diesel Engines
(Continued)
0 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 Emission 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.
0 Replace air cleaner filter. Replace filter more often under dusty
conditions.
An Emission Control Service. *
0 For 2-Wheel Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
0 Check the crankcase depression regulator valve system for any worn,
plugged or collapsed hoses. See service manual.
An Emission Control
Service.
0 Replace fuel filter. Replace filter sooner if it is clogged.?
0 Check the EGR System (if equipped) (except Code F engine) as
described in the service manual.
An Emission Control Service.
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.
(Continued)
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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
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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)
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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
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Engine (continued)
Coolant
..................................................... 6-35
Coolant Heater
...................................... 2.18.3-4. 6.21
Coolant Temperature Gage (See “Gages”)
Control Module System
........................................ 6-57
Diesel Heater Output
............................................ 34
Exhaust
..................................................... 2-32
FanNoise
................................................... 5-25
Identification
....................................... 6-76,677, 6-81
Oil (See “Oil”)
Overheating
.................................................. 5-10
RunningWhileParked
......................................... 2-32
Starting Your Gasoline Engine
................................... 2-12
Starting Your Diesel Engine
..................................... 2-14
Exhaustsystem
................................................. 6-56
F
Filter Replacement Chart (See “Service-Replacement Parts and Filter
Recommendations”)
FinishDamage
.................................................. 6-74
Fluid Capacities (See “Capacities and Specification”)
FluidLeakCheck
................................................ 646
Fluids (See “Scheduled Maintenance Services”)
Fog Lamps (See “Lamps-Fog”)
Four-WheelDrive
.......................................... 2-33, 6-33
Front Axle Locking Feature
..................................... 2-36
Transfer Case
........................................... 2-34, 6-33
Canadian
...................................................... 6-5
Diesel
....................................................... 6-3
FillingYourTank
............................................. 6-11
Fuel
Foreign Countries (Gasoline Engines)
............................. 6-11
Filter Replacement (Diesel Engines)
............................... 6-9
Gage (See “Gages”)
Gasoline
..................................................... 6-2
Gasolines for Cleaner Air
........................................ 6-3
Running Out of Fuel (Diesel Engines)
.............................. 6-8
Tankcapacity
................................................ 6-83
Water in Fuel (Diesel Engines)
............................... 2-74, 6-5
Fuses and Circuit Breakers ................................... 6-79, 6-87
FuseBlock
............................................. 6-80, 6-86
G
Gages Engine Coolant Temperature Gage
................................ 2-80
Oil Pressure Gage
............................................. 2-81
Tamper Resistant Odometer ..................................... 2-69
Trip Odometer
................................................ 2-69
FuelGage
................................................... 2-79
Speedometer
................................................. 2-69
Tachometer
.................................................. 2-70
Voltmeter
.................................................... 2-82
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