2003 CHEVROLET IMPALA engine

{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without
the appropriate safety equipment and training.
The jack provided with your vehicle is
designed only for changing a ¯at tire. If it is
used for anything else, you or others could be
badly injured or killed if the vehicle slips off
the jack. Use the jack provided with your
vehicle only for changing a ¯at tire.
If a tire goes ¯at, the next part shows how to use your
jacking equipment to change a ¯at tire safely.
Changing a Flat Tire
If a tire goes ¯at, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your
hazard warning ¯ashers.
{CAUTION:
Changing a tire can cause an injury. The
vehicle can slip off the jack and roll over you
or other people. You and they could be badly
injured. Find a level place to change your tire.
To help prevent the vehicle from moving:
1. Set the parking brake ®rmly.
2. Put the shift lever in PARK (P).
3. Turn off the engine.
To be even more certain the vehicle won't
move, you can put blocks at the front and rear
of the tire farthest away from the one being
changed. That would be the tire on the other
side of the vehicle, at the opposite end.
5-72

Vehicle Identi®cation
Vehicle Identi®cation Number (VIN)
This is the legal identi®er for your vehicle. It appears on
a plate in the front corner of the instrument panel, on
the driver's side. You can see it if you look through the
windshield from outside your vehicle. The VIN also
appears on the Vehicle Certi®cation and Service Parts
labels and the certi®cates of title and registration.
Engine Identi®cation
The 8th character in your VIN is the engine code. This
code will help you identify your engine, speci®cations
and replacement parts.
Service Parts Identi®cation Label
You'll ®nd this label on the inside of your trunk lid. It's
very helpful if you ever need to order parts. On this
label is:
·your VIN,
·the model designation,
·paint information and
·a list of all production options and special
equipment.
Be sure that this label is not removed from the vehicle.
5-93

Underhood Fuse Block (Upper)
Some fuses are in a fuse block in the engine
compartment on the passenger's side of the vehicle.
See
Engine Compartment Overview on page 5-12for more information on location.
Relays Usage
FUEL PUMP Fuel Pump
DRL RELAY Daytime Running Lamps
A.I.R. RELAY Air Induction Reaction Relay
CRANK RLY Starter (Crank) Relay
HORNS Horn
FOG LTS Fog Lamps
Fuses Usage
LEFT I/P Left Fuse Block (Battery)
RT I/P #1 Right Fuse Block (Battery)
RT I/P #2 Right Fuse Block (Battery)
U/HOOD #1 Underhood (Top) Fuse Block
HORN RLY Horn Relay
BLANK Blank
BLANK Blank
FOG RLY Fog Lamps Relay
F/PMP RLY Fuel Pump Relay
DRL/EXIT LTSLow (Left Front) & High (Left Front)
Headlamps
EXT LTSLow (Right Front) & High (Right
Front) Headlamps
PCM PCM Battery
A/C RLY
(CMPR)HVAC Compressor Relay &
Generator
5-100

Underhood Fuse Block (Lower)
Some fuses are in a fuse block in the engine
compartment on the passenger's side of the vehicle.
See
Engine Compartment Overview on page 5-12for more information on location.
Relays Usage
FAN CONT #3Secondary Cooling Fan
(Passenger's Side)
FAN CONT #2 Cooling Fan Control Relay
FAN CONT #1 Primary Cooling fan (Driver's Side)
IGN RELAY Ignition Relay
A/C CMPR HVAC Compressor
5-101

Capacities and Speci®cations
Please refer toPart D: Recommended Fluids and
Lubricants on page 6-16for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R-134a 2.4 lbs 1.1 kg
Automatic Transaxle
Pan Removal and Replacement
After Complete Overhaul
When draining/replacing converter, more ¯uid may be
needed.
7.4 quarts
10 quarts7.0 L
9.5 L
Cooling System Including Reservoir
3400 (Code E) V6
3800 (Code K) V611.3 quarts
11.7 quarts10.7 L
11.0 L
Engine Oil with Filter
3400 (Code E) V6
3800 (Code K) V64.0 quarts
4.5 quarts3.8 L
4.2 L
Fuel Tank 17.0 gallons 64.0 L
All capacities are approximate. When adding, be sure to ®ll to the approximate level, as recommended in this
manual. See
Part D: Recommended Fluids and Lubricants on page 6-16.
5-103

Engine Speci®cations
Engine VIN Code Transmission Spark Pug Gap Firing OrderWheel Nut
Torque
3400 (LA1) V6 E 4T65E0.060 inches
(1.52 mm)1±2±3±4±5±6100 lb ft
140Y
3800 (L36) V6 K 4T65E0.060 inches
(1.52 mm)1±6±5±4±3±2100 lb ft
140Y
5-104

Normal Maintenance Replacement Parts
Normal Maintenance Replacement Parts
Part Number
Engine Air Cleaner/Filter A1614C*
Passenger Compartment Air Filter GM Part No. 10406026
All EnginesPF47*
Automatic Transmission Filter 24206433*
Spark Plugs
3400 (Code E) V6
3800 (Code K) V641±101*
41±101*
Windshield Wiper Blades
Length
Type22.0 inches (56.0 cm)
Shepherd's Hook
*AC Delco
žpart number.
5-105

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Your Vehicle and the Environment....................6-2
Maintenance Requirements..............................6-2
How This Section is Organized.........................6-3
Part A: Scheduled Maintenance Services...........6-4
Using Your Maintenance Schedule....................6-4
Scheduled Maintenance...................................6-5
Part B: Owner Checks and Services................6-10
At Each Fuel Fill..........................................6-10
At Least Once a Month.................................6-10
At Least Twice a Year...................................6-11At Least Once a Year...................................6-11
Part C: Periodic MaintenanceInspections.........6-14
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection............................6-14
Exhaust System Inspection............................6-14
Fuel System Inspection..................................6-15
Engine Cooling System Inspection...................6-15
Throttle System Inspection.............................6-15
Brake System Inspection................................6-15
Part D: Recommended Fluids and Lubricants. . . .6-16
Part E: Maintenance Record...........................6-17
Section 6 Maintenance Schedule
6-1