2005 CHEVROLET BLAZER check engine

97,500 Miles (162 500 km)
❑Change engine oil and lter (or every 12 months,
whichever occurs rst).An Emission Control
Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #.)
❑Check rear/front axle uid level and add uid as
needed. Check constant velocity joints and axle seals
for leaking.(See footnote **.)
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
100,000 Miles (166 000 km)
❑Inspect spark plug wires.An Emission Control
Service.
❑Replace spark plugs.An Emission Control Service.
❑If you have not used your vehicle under severe
service conditions listed previously and, therefore,
have not changed your automatic transmission uid,
change both the uid and lter. Manual transmission
uid does not require change.
❑Automatic Transfer Case Only: Change transfer
case uid.
❑Inspect Positive Crankcase Ventilation (PCV) valve.
An Emission Control Service.
150,000 Miles (240 000 km)
❑Drain, ush and rell cooling system (or every
60 months since last service, whichever occurs rst).
SeeEngine Coolant on page 5-25for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.An Emission Control Service.
❑Inspect engine accessory drive belt.An Emission
Control Service.
6-24

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals specied to
help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-13for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-25for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer tank and add the proper uid if necessary.
SeeWindshield Washer Fluid on page 5-37for further
details.
At Least Once a Month
Tire Ination Check
Visually inspect your tires and make sure tires are
inated to the correct pressures. Do not forget to check
your spare tire. SeeTires on page 5-56for further
details.
Cassette Tape Player Service
Clean cassette tape player. Cleaning should be done
every 50 hours of tape play. SeeAudio System(s)
on page 3-39for further details.
6-25

At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specied in Part D.
Body Lubrication Service
Lubricate all hood hinges, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
door hinges, fuel door hinge, endgate hinges, outer
tailgate handle pivot points, tailgate hinges, tailgate
mounted spare tire (if equipped), glove box and console
doors, moving seat hardware 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 Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-36if
necessary.
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
oor. If the starter works when the clutch is not
pushed all the way down, your vehicle needs service.
6-27

Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake, SeeParking Brake
on page 2-36if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to RUN, but do
not 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 needs service.
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK in each shift lever position.
With an automatic transmission, the ignition should
turn to LOCK only when the shift lever is in
PARK (P).
With a manual transmission, the ignition should turn
to LOCK only when you press the key release
button.
On all vehicles, the key should come out only in LOCK.
6-28

Parking Brake and Automatic
Transmission Park (P)
Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure form
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P). Then
release the parking brake followed by the
regular brake.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-29

Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts
as needed. Replace any components that have high
effort or excessive wear. Do not lubricate accelerator
and cruise control cables.
Transfer Case and Front Axle
(Four-Wheel Drive) Inspection
Every 12 months or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary. A uid loss could indicate a problem;
check and have it repaired, if needed. Check vent
hose at transfer case for kinks and proper installation.
More frequent lubrication may be required on
off-road use.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
chang, etc. Inspect disc brake pads for wear and rotors
for surface condition. Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including
drums, wheel cylinders, calipers, parking brake, etc.
Check parking brake adjustment. You may need to have
your brakes inspected more often if your driving
habits or conditions result in frequent braking.
6-31

Audio System(s) (cont.)
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-40
Theft-Deterrent Feature................................3-74
Understanding Radio Reception.....................3-75
Automatic Headlamp System............................3-15
Automatic Transmission
Fluid..........................................................5-19
Operation...................................................2-24
B
Battery..........................................................5-41
Run-Down Protection...................................3-17
Before Leaving on a Long Trip.........................4-36
Brake
Anti-Lock Brake System (ABS)........................ 4-8
Emergencies................................................ 4-9
Parking......................................................2-36
System Inspection.......................................6-31
System Warning Light..................................3-28
Brakes..........................................................5-38
Braking........................................................... 4-7
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-49
Halogen Bulbs............................................5-49
Headlamps.................................................5-49
One-Piece Front Turn Signal Lamps...............5-51Bulb Replacement (cont.)
Replacement Bulbs......................................5-53
Taillamps....................................................5-53
Two-Piece Front Turn Signal Lamps...............5-52
Buying New Tires...........................................5-66
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications..........................5-102
Carbon Monoxide...................2-12, 2-40, 4-40, 4-59
Care of
Safety Belts................................................5-89
Your Cassette Tape Player............................3-75
Your CD Player...........................................3-76
Your CDs ...................................................3-76
Cargo Tie Downs............................................2-55
Center Front Passenger Position, Safety Belts....1-22
Center Rear Passenger Position, Safety Belts.....1-26
Center Seat Positions, Child Restraints..............1-49
Chains, Tire...................................................5-70
Charging System Light....................................3-26
Check
Engine Light...............................................3-30
Gages Warning Light...................................3-35
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-93
2

Customer Assistance Information (cont.)
Reporting Safety Defects to the United States
Government............................................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11
D
Daytime Running Lamps..................................3-14
Defensive Driving............................................. 4-3
Doing Your Own Service Work........................... 5-4
Dome Lamps.................................................3-16
Door
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
Driver
Position, Safety Belt.....................................1-14
Driver Behavior................................................ 4-2
Driver Information Center (DIC).........................3-37
Driving
At Night.....................................................4-30
City...........................................................4-34
Defensive..................................................... 4-3
Drunken....................................................... 4-4
Environment................................................. 4-2
Freeway.....................................................4-35
Hill and Mountain Roads..............................4-38
In Rain and on Wet Roads...........................4-32Driving (cont.)
Recovery Hooks..........................................4-45
Rocking Your Vehicle to Get it Out.................4-44
Winter........................................................4-40
E
Electrical System
Add-On Equipment......................................5-96
Engine Compartment Fuse Block...................5-99
Fuses and Circuit Breakers...........................5-97
Headlamps.................................................5-96
Instrument Panel Fuse Block.........................5-98
Power Windows and Other Power Options......5-97
Windshield Wiper Fuses...............................5-97
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-41
Check and Service Engine Soon Light............3-30
Coolant......................................................5-25
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-29
Cooling System Inspection............................6-30
Engine Compartment Overview......................5-12
Exhaust.....................................................2-40
Fan Noise..................................................5-35
Oil .............................................................5-13
Overheating................................................5-28
Starting......................................................2-21
4