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7-44
GROUP 7-AUTOMATIC TRANSMISSION
C4 AUTOMATIC DIAGNOSIS GUIDI
Items to Check
Trouble Symptom
Transmission
Transmission
in Vehicle
Out of Vehicle
Rough Initial Engagement in D or 2
KBWFE
Rough Initial Engagement 2 OnJy
OJ
1-2 or 2-3 Shift Points Incorrect
ALBCDWE
Rough 2-3 Shift
BFE
Engine Overspeeds on 2-3 Shift
B G WE F
r
No Shift Points
BCD E J
No 2-3 Shift
CRDE
b r
No 3-1 Shift in D
BE
No Forced Downshifts
LWE
Runaway Engine on Forced Downshift
G FE J B
c
Rough 3-2 or 3-1 Shift at Closed Throttle
KBE
Shifts 1-3 in D
G J
No Engine Braking In First Gear-Manuall
HI
Creeps Excessively in D or 2
K
Slips or Chatters in First Gear, D
ABWFE
a c i
Slips or Chatters in Secon" Gear D or 2
ABGWFEJ
a c
Slips or Chatters in R
AHWFEI
b c
No Drive in D onJy
CE
i
No Drive in 2 only
c
No Drive in R onJy
CHI E R
b c
No Drive in D, 2, or I
DWR
a
No Drive in Any Selector Lever Position
ACWFER
c h
Lockup in 2 onl}'
H I
i
Lockup in R only
a
I
Parking Lock Binds or
Does
Not Hold
c
g
Transmission Overheats
AOF
n
Maximum Speed Too Low, Poor Acceleration
n
Transmission Noisy in N
F
d
Transmission Noisy in First, Second, and Reverse Gear
F
h d
Transmission Noisy in P
F
d
Fluid Leak
MNOPQSUX
jmp
Kn TO DIAGNOSIS GUIDI
TRANSMISSION IN VEHICLE
A
Fluid Level
TRANSMISSION OUT OF VEHICLE
B
Vacuum Diaphragm Unit or Tubes
c
Manual Linkage
a
Forward Clutch
D
Governor
E
Valve Body
b
Reverse-High Clutch
F
Control Pressure Regulator Valve
c
Leakage in Hydraulic System
G
Intermediate Band
H
Low-Reverse Band
d
Front Pump
I
Low-Reverse Servo
J
Intermediate Servo
I
Parking Linkage
K
Engine Idle Speed
L
Downshift Linkage
h
Planetary Assembly
M
Convertor Drain Plugs
N
Oil Pan Gasket, or Filler Tube
i
Planetary One-Way Clutch
0
Oil Cooler and Connections
p
Manual or Downshift Lever Shaft Seal
j
Engine Rear Oil Seal
Q
lh
-inch Pipe Plug in Side of
Case
m
Front Pump Oil Seal
R
Perform Air-Pressure Check
s
Extension Housing to Case Gaskets and
Lock washers
n
Converter One-Way Clutch
u
Extension Housing Rear Oil Seal
p
Front Pump to Case Gasket or Seal
w
Perform Control Pressure Check
X
Speedometer Driven Gear Adapter Seal
r
Reverse-High Clutch Piston Air Bleed Valve
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