1993 CHEVROLET BLAZER fuel filter

These numbers on an oil container show its viscosity, or thickness.
Do not use other viscosity oils such as SAE 1OW-40 or SAE 2OW-50.
Energy Conserving II
Oils with these words on the container will help you save fuel.
This doughnut-shaped logo (symbol) is used on most oil contai\
ners to help
you select the correct oil,
You should look for this on the
oil container, and use only those oils that
display the logo.
GM Goodwrench@ oil (in Canada, GM Engine Oil) meets all the requirements
for your vehicle.
Engine Oil Addifives:
Don't add anything to your oil. Your GM dealer is ready to advise if you think
something should be added.
When to Change Engine Oil:
See if any one of these is true for you;
Most trips are less than 4 miles (6 km).
It's below freezing outside and most trips are less than 10 miles (16 km).
The engine is at low speed most of the time (as in door to door
You tow a trailer often.
Most trips are through dusty places.
The vehicle is frequently operated off-road. delivery, or in stop-and-go
traffic),
If any one of these is true for your vehicle, then you need to change your oil
and filter every 3,000 miles (5000 km) or 3 months-whichever comes first.
Vehicles with Light Duty Emissions (8500 GVWR or less).
If none of them is true, change the oil every 7,500 miles (1 2 500 km) or 12
months-whichever comes first. Change the filter at the first oil change and at
every other oil change after that.
Vehicles with Heavy Duty Emissions (8501 GVWR or more).
If none of them is true, change the oil every 6,000 miles (1 0 000 km) or 12
months-whichever comes first. Change the filter at the first oil change and at
every other oil change after that if mileage determines when you change your
6-1 5

Crankcase Capacify
QUANTITY*
ENGINE VIN CODE Without Filter With Filter
5.7L K 4 Quarts (3.8 Liters) 5 Quarts (4.8 Liters)
7.4L N 6 Quarts (5.7 Liters) 7 Quarts (6.6 Liters)
*All quantities are approximate.
*After refill, the level MUST be checked as outlined under “\
Engine Oil
TO296
And Filter Recommendations” in Section
5.
Air Condifioning Refrigeranf Capacify
TYPE* QUANTITY
Refrigerant R-12 Front
AJC 3.0 Ibs. (1.360 kg)
Front and Rear AJC 4.25 Ibs. (1.927 kg)
*Not all air conditioning refrigerants are the same.
If the air conditioning
system in your vehicle needs refrigerant, be sure the proper r\
efrigerant is
used. If you’re not sure, ask your GM dealer. TO302
Fuel Tank Capacify
I -1
Utility Model-Standard 30 Gallons (113 Liters)
Wagon Model-Standard 42 Gallons (159 Liters)
All quantities are for a completely dry tank and are approxima\
te. TO2971
Service Replacemenf Part and Filfer Recommendations
5.7 (K)
6.2 (C)
6.2
(J)*
6.5 (F)*
-
Oil
Filter
PF5 1
PF35t PF35t
PF35
PF35
PF35
PF35
-
1
Air PCV
Cleaner Valve
A348C
cv774c
A348C cv774c
A644C
A644C
A91 7C
A348C cv774c
AI 7acw cv7agc
Spark**
Plugs
.CR43TS
.CR43TS
.CR43TS
-
.CR43TS i
use a PF51 oil filter
*Heavy Duty Emission Engine
**Use
AC copper-cored resistor type spark plugs.
Fuel
Filter
GF481
GF481
GF481
TP
1 006
TP 1 006
TP 1 006 G F48 1
Radiator
RC36
RC36
RC36
RC32
RC32
RC32
RC36
Cap
6-69

6. AIR CLEANER FILTER REPLACEMENT* -Replace at every 30,000
miles (50 000 km) or more often under dusty conditions. Ask your dealer
for the proper replacement intervals for your driving conditions\
.
7. FRONT WHEEL BEARING REPACK (2 WHEEL DRIVE ONLY) -Clean
and repack the front wheel bearings at each brake relining,
or at the
specified interval, whichever comes first.
8.
TRANSMISSION SERVICE
Automatic Transmission
-Change the transmission fluid and filter every
15,000 miles (25 000 km) for vehicles under 8,600 GVWR or every
12,000 miles
(20 000 km) for vehicles over 8,600 GVWR if the vehicle
is mainly driven under one
or more of these conditions:
In heavy city traffic.
Where the outside temperature regularly reaches 90°F (32°C) or
In hilly or mountainous terrain.
higher.
Frequent trailer pulling.
Uses such as taxi, police, delivery or other commercial service.
If the vehicle is not used mainly under any of these conditions, change
the fluid and filter every
30,000 miles (50 000 km) for vehicles under
8600 GVWR or every
24,000 miles (40 000 km) for vehicles over 8600
GVWR. See “Automatic Transmission Fluid” in the Index for more
information.
Manual Transmission -Transmission fluid does not require periodic
changing.
9. CDRV SYSTEM INSPECTION* -Check the Crankcase Depression
Regulator Valve System
for any worn, plugged or collapsed hoses. Have
the system checked as described in the Service Manual.
10. FUEL FILTER REPLACEMENT --Replace the fuel filter at the specified
interval
or sooner if clogged.
11.
SPARK PLUGS REPLACEMENT” --Replace spark plugs with the type
listed in Section
6. See “Specification Charts” in the Index.
12.
SPARK PLUG WIRE INSPECTION* -Clean wires and inspect for burns,
cracks
or other damage. Check the wire boot fit at the distributor and at
the spark plugs. Replace wires as needed.
*An Emission Control Service
7-1 9

Scheduled Maintenance Services
13. EGR SYSTEM INSPECTION* -Conduct EGR SYSl /l CHECK as
described in the Service Manual.
14. ELECTRONIC VACUUM REGULATOR VALVE (EVRV) INSPECTION*
-Inspect filter for excessive contamination or plugging. If required, clean
element with a solution of biodegradable soap and water, let
dry and
reinstall element.
MODELS)* -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.
15. ENGINE TIMING CHECK AND DISTRIBUTOR CHECK (SOME
16. FUEL TANK, CAP AND LINES INSPECTION* -Inspect the fuel tank,
cap and lines
for damage or leaks. Remove fuel cap, inspect gasket for
an even filler neck imprint, and any damage, Replace parts as needed.
17.
THERMOSTATICALLY CONTROLLED AIR CLEANER INSPECTION*
A-(If so equipped.) Inspect all hoses and ducts for proper hookup.
Make sure valve works properly.
Look for cracks, fraying, wear, and proper tension. Adjust or replace as
needed.
19. EVAPORATIVE CONTROL SYSTEM (ECS) INSPECTION* -Check all
fuel and vapor lines and hoses for proper hookup, routing, and\
condition.
Check that the purge valve works properly, if equipped. Replace\
as needed.
20.
SHIELDS AND UNDERHOOD INSULATION INSPECTION Awlnspect
shields and underhood insulation for damage or looseness. Adjust
or
replace as required.
installation to see that gaskets are seated properly and all hose
connections, fasteners, and other components are tight.
Also check to be
sure that the air cleaner housing is properly seated, that the\
cover
fits
tightly, and the wing nuts are tight. Tighten connections and \
fasteners or
replace damaged parts as required.
18. ENGINE ACCESSORY DRIVE BELT(S) INSPECTION* --Inspect belts.
21.
AIR INTAKE SYSTEM INSPECTlONAWCheck the air intake system
22. THERMOSTATICALLY CONTROLLED ENGINE COOLING FAN INSPECTIONAB-(If
so equipped.) With the engine off and below
normal operating temperature, check
to see that the fan can be rotated
by hand on fluid coupling or viscous drives. Replace as necessary.
*An Emission Control Service
A Also a Noise Emission Control Service
Applicable only to vehicles sold in the United States
7-20

Skidding ..................................... 4-23
Stuck
in Deep Snow .... 4-56, 5-31
Through Water
............... 2-1 5, 4-34
Uphill
.......................................... 4-28
Winter
........................................ 4-53
With a Trailer
............................ 4-60
Drunken Driving
........................... 4-1 0
E
Electrical System ......................... 6-37
Add-on Equipment
................... 6-67
Engine
Adding Coolant
... 5-1 1, 5-13, 6-27
Air Cleaner
................................ 6-1 6
Block Heater
.......... 2-16, 3-5, 6-16
Computer Command Control
System
..................................... 6-45
Coolant
............................ 6-25, 6-68
Coolant Temperature Gage
...... 2-77
Cooling System
......................... 5-10
Crankcase .................................. 6-69
Exhaust
..................................... 2-28
Fan Noise
.................................. 5-1 6
Identification
................... 6-65, 6-68
Leaving Vehicle While Running
....................... 2-26
Oil (See
“Oil”)
Overheating ................................. 5-8
Running While Parked
............. 2-29
Starting
...................................... 2-1 4
Equipment, Add-on
...................... 6-48
Exhaust System
........................... 6-45
F
Fan Noise ...................................... 5-1 6
Filter Replacement Chart
............ 6-69
Finish
Care
............................................ 6-61
Damage
..................................... 6-62
Automatic Transmission
........... 6-17
Brake
.......................................... 6-32
Fluid Capacities
.................................. 6-68
Coolant
....................................... 5-11
Front Axle ................................. 6-24
Hydraulic
Clutch ....................... 6-21
Leak Check
............................... 6-35
Manual Transmission
............... 6-20
Power Steering
......................... 6-29
Radiator
..................................... 5-13
Rear Axle
.................................. 6-24
Recommended Fluids
.............. 7-25
Transfer Case
............................ 6-23
Windshield Washer
........ 2-40, 6-31
Four-wheel Drive
............... 2-30, 6-23
Transfer Case
................. 2-30, 6-23
Front Axle
..................................... 6-24
Fuel
.................................................. 6-4
Filling Your Tank
......................... 6-6
Foreign Countries
....................... 6-6
Gage
.......................................... 2-76
Gasolines
for Cleaner Air ......... 6-5
Tank Capacity
........................... 6-69
Fuses and Circuit Breakers
.......... 6-43
Fuse Block
................................ 6-44
Headlights
................................. 6-43
Power Windows and
Other Power Options
........... 6-44
Trailer Wiring Harness
............. 6-44
Windshield Wipers
................... 6-44
G
Gages .................................. 2-66, 2-76
Coolant Temperature Gage
..... 2-77
Fuel Gage
.................................. 2-76
Odometer
................................... 2-66
Oil Pressure Gage
.................... 2-78
Speedometer
............................. 2-66
Tachometer
................................ 2-67
Trip Odometer
........................... 2-67
Voltmeter
................. ................. 2-79
Glove Box
..................................... 2-56
9-3