transmission oil CHEVROLET AVEO 2002 Service Repair Manual

Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to
its width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires that hold the
tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles, less than 90 degrees to the
centerline of the tread.Cold Ination Pressure:The amount of air pressure
in a tire, measured in pounds per square inch (psi)
or kilopascal (kPa), before a tire has built up heat from
driving. SeeInflation - Tire Pressure on page 5-59.
Curb Weight:This means the weight of a motor vehicle
with standard and optional equipment including the
maximum capacity of fuel, oil and coolant, but without
passengers and cargo.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the
U.S. Department of Transportation motor vehicle safety
standards. The DOT code includes the Tire Identification
Number (TIN), an alphanumeric designator which can
also identify the tire manufacturer, production plant,
brand and date of production.
GVWR:Gross Vehicle Weight Rating, seeLoading
Your Vehicle on page 4-32.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 4-32.
GAWR RR:Gross Axle Weight Rating for the rear axle,
seeLoading Your Vehicle on page 4-32.
5-56

Part D: Recommended Fluids
and Lubricants
Fluids and lubricants identified below by name, part
number or specification may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM Standard
GM6094M and displays the
American Petroleum Institute
Certified for Gasoline Engines
starburst symbol. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on page 5-15.
Engine Coolant50/50 mixture of clean, drinkable
water (preferably distilled) and good
quality Ethylene Glycol Base Coolant
(GM Part No. U.S. 12378560,
in Canada 993089) and conforming
to GM Specification 1825M or
recycled coolant conforming to
GM Specification 1825M.
SeeEngine Coolant on page 5-23.
Usage Fluid/Lubricant
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake fluid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Power Steering
SystemDEXRON
®-III Automatic
Transmission Fluid.
Automatic
TransaxleAutomatic Transaxle Fluid ESSO
LT 71141 or TOTAL ATF H50235.
Manual
TransaxleGM Goodwrench Synthetic
Manual Transmission Fluid
(GM Part No. U.S. 12346190,
in Canada 10953477) or equivalent
SAE 75W-85 GL-4 gear oil.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
6-26

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name, part
number, or specification may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM Standard
GM6094M and displays the
American Petroleum Institute
Certified for Gasoline Engines
starburst symbol. GM Goodwrench
®
oil meets all the requirements for your
vehicle. To determine the proper
viscosity for your vehicle’s engine,
seeEngine Oil on page 5-13.
Engine Coolant50/50 mixture of clean, drinkable
water (preferably distilled) and good
quality Ethylene Glycol Base Coolant
(GM Part No. U.S. 12378560, in
Canada 993089) and conforming to
GM Specification 1825M or recycled
coolant conforming to GM
Specification 1825M. SeeEngine
Coolant on page 5-22.
Usage Fluid/Lubricant
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake fluid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Power Steering
SystemDEXRON
®-III Automatic
Transmission Fluid. Look for
“Approved for the H-Specification”
on the label.
Automatic
TransaxleUse only T-IV Automatic
Transmission Fluid
(GM Part No. U.S. 88900925, in
Canada 22689186). SeeAutomatic
Transaxle Fluid on page 5-19.
Manual
TransaxleGM Goodwrench
®Synthetic Manual
Transmission Fluid
(GM Part No. U.S. 12346190, in
Canada 10953477) or equivalent
SAE 75W-85 GL-4 gear oil.
6-25

2006 TRANSMISSION
Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
Application
Specification
MetricEnglish
Check Valve Spring Bolts6.5 N.m57 lb in
Control Cable Adjusting Nut8 N.m71 lb in
Damping Block Connection Nut and Bolt80 N.m59 lb ft
Differential Case-to-Differential Ring Gear Bolt102 N.m75 lb ft
Drain Plug17 N.m13 lb ft
Fluid Cooler Inlet Pipe Bolt9 N.m80 lb in
Fluid Cooler Inlet Pipe Fitting Nut35 N.m26 lb ft
Fluid Cooler Rear Outlet Pipe Clip Bolt9 N.m80 lb in
Fluid Cooler Rear Outlet Pipe Fitting Nut35 N.m26 lb ft
Front Outlet Pipe Clip Bolt9 N.m80 lb in
Front Outlet Pipe Union Bolt35 N.m26 lb ft
Input Speed Sensor Retaining Bolt5.4 N.m48 lb in
Manual Detent Spring Bolt9.8 N.m87 lb in
Manual Valve Lever Shaft Nut12 N.m106 lb in
Lower Transaxle-to-Engine Retaining Bolts73 N.m54 lb ft
Lower Transaxle-to-Engine Retaining Bolts31 N.m23 lb ft
Lower Transaxle-to-Engine Retaining Bolts21 N.m15 lb ft
Oil Pan Bolts7 N.m62 lb in
Oil Pump Bolts25 N.m18 lb ft
Oil Reservoir Lock Plate Bolts5.4 N.m48 lb in
Oil Strainer Bolts9.8 N.m87 lb in
Output Speed Sensor Retaining Bolt7.4 N.m65 lb in
Park/Neutral Position Switch Bolts5.4 N.m48 lb in
Parking Lock Pawl Bracket Bolts7.4 N.m65 lb in
Planetary Ring Gear Nut-Maximum29 N.m22 lb ft
Planetary Ring Gear Nut-Standard9.8 N.m87 lb in
Rear Mounting Bracket Bolts60 N.m44 lb ft
Screw Plugs7.4 N.m65 lb in
Shift Control Lever Assembly Mounting Bolts8 N.m71 lb in
Shift Solenoid Valve Bolts11 N.m97 lb in

2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo

2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Thursday, July 16, 2009 1:17:16 PMPage 1 © 2005 Mitchell Repair Information Company, LLC.
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TRANSMISSION GENERAL SPECIFICATIONS
Transmission General Specifications
Washer Thickness
Shim Thickness
Stator Shaft Bolts25 N.m18 lb ft
TCM Retaining Bolts5 N.m44 lb in
Torque Converter Bolts45 N.m43 lb ft
Transaxle Apply Clamp Bolt5.4 N.m48 lb in
Transaxle Case Plate Bolt9.8 N.m87 lb in
Transaxle Housing Bolts29 N.m22 lb ft
Transaxle Rear Cover Bolts25 N.m18 lb ft
Unions25 N.m18 lb ft
Upper Transaxle Mounting Bracket Bolts60 N.m44 lb ft
Upper Transaxle-to-Engine Mounting Bolts73 N.m54 lb ft
Valve Body Bolts11 N.m97 lb in
Application
Specification
MetricEnglish
MakerAISIN
Type or Model81-40LE
Gear Ratio - 1st2.875:1
Gear Ratio - 2nd1.568:1
Gear Ratio - 3rd1.000:1
Gear Ratio - 4th0.697:1
Reverse2.300:1
Final Drive Ratio3.750:1
Oil Capacity5.6L5.9 qt
Transmission Fluid Type
T-IV Automatic Transmission Fluid (GM
Part No. U.S. 88900925, in Canada
22689186)
MetricEnglish
0.95 mm0.0374 in
1 mm0.0394 in
1.05 mm0.0413 in
1.1 mm0.0433 in
1.15 mm0.0453 in
1.2 mm0.0472 in
Specification

2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
Microsoft
Thursday, July 16, 2009 1:17:16 PMPage 2 © 2005 Mitchell Repair Information Company, LLC.

CalloutComponent Name
1Breather Hose
2Clip
3Breather Plug
4O-Ring
5Washer
6Drain Plug
7O-Ring
8Screw Plug
9O-Ring
10Oil Cooler Inlet Union
11O-Ring
12Oil Cooler Outlet Union
13Input Shaft Speed (ISS) Sensor

2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
Microsoft
Thursday, July 16, 2009 1:17:17 PMPage 21 © 2005 Mitchell Repair Information Company, LLC.

Fig. 22: Case And Associated Parts (2 of 2)
Courtesy of GENERAL MOTORS CORP.
Callouts For Fig. 22
CalloutComponent Name
1Oil Seal
2Transaxle Housing
3Oil Reservoir Plate
4Transaxle Oil Apply Pipe
5Spring
6Check Valve Pipe Clamp
7Apply Gasket
8Brake Drum Gasket
9Differential Gear Oil Apply Pipe

2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
Microsoft
Thursday, July 16, 2009 1:17:17 PMPage 22 © 2005 Mitchell Repair Information Company, LLC.

10O-Ring
11Transaxle Wire
12Torsion Spring
13Transaxle Oil Apply Pipe Clamp
14Parking Lock Pawl
15Manual Valve Lever
16Spacer
17Oil Seal
18Park/Neutral Position Switch
19Lock Washer
20Control Lever
21Washer
22Spring
23O-Ring
24Overdrive Brake Accumulator Piston
25O-Ring
26Spring
27O-Ring
28Forward Clutch Accumulator Piston
29O-Ring
30O-Ring
31Direct Clutch Accumulator Piston
32O-Ring
33Spring
34Manual Detent Spring
35Pin
36Parking Lock Rod
37Parking Lock Pawl Shaft
38Manual Valve Lever Shaft
39Parking Lock Pawl Bracket
40Oil Pan
41Gasket
42Magnet
43Oil Strainer
44Gasket
45Valve Body

2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
Microsoft
Thursday, July 16, 2009 1:17:17 PMPage 23 © 2005 Mitchell Repair Information Company, LLC.

Fig. 24: Differential And Oil Pump Component View
Courtesy of GENERAL MOTORS CORP.
Callouts For Fig. 24
CalloutComponent Name
1Side Bearing Outer Race
2Shim
3Outer Tapered Roller Bearing Race
4Counter Driven Gear
5Oil Seal
6Transaxle Case Plate
7Apply Gasket
8Counter Driven Gear
9Direct Clutch Hub
10Thrust Bearing Race
11Direct Clutch Assembly
12Thrust Needle Roller Bearing
13Differential Case
14Oil Pump

2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
Microsoft
Thursday, July 16, 2009 1:17:17 PMPage 26 © 2005 Mitchell Repair Information Company, LLC.

Fig. 27: Upper Valve Body Spring Component View
Courtesy of GENERAL MOTORS CORP.
Automatic Transmission Components
MarkNameColorFree LengthOuter DiameterTotal
Number of
Coils
MetricEnglishMetricEnglish
13-4 Shift
ValveRed25.5 mm1.0039 in9.73 mm0.3831 in7.75
2
Lock Up
Control
Valve
Yellow20.87 mm0.8217 in5.55 mm0.2185 in11.15
3
Reverse
Control
Valve
-25.58 mm1.0071 in8.64 mm0.3402 in8.75
4
Secondary
Regulator
Valve
White34.56 mm1.3606 in8.8 mm0.346 in12.27
5
Reverse
Clutch
Accumulator
-65.4 mm2.5748 in17 mm0.669 in13.7

2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
Microsoft
Thursday, July 16, 2009 1:17:17 PMPage 36 © 2005 Mitchell Repair Information Company, LLC.