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7-94
GROUP
7- AUTOMATIC TRANSMISSION
Items to Check
Trouble SJmptoms
Transmission
Transmission
in Car
Out
of
Car
Rough Initial Engagement in D or 2
K BWFEG
1-2 or 2-3 Shift Points Incorrect
ABCDWEL
Rough 2-3 Shift
BG FEJ
Engine Over speeds on 2-3 Shift
BG EF
r
No 1-2 or 2-3 Shift
D ECG J
be
No 3-1 Shift
KBE
No Forced Downshifts
LWE
Runaway Engine Forced Downshift
G F EJ B
c
Rough 3-2 or 3-1 Shift at Closed Throttle
KBE
Creeps Excessively
K
Slips or Chatters in First Gear, D
ABWFE
aci
Slips or Chatters in Second Gear
ABGWFEJ
ac
Slips or Chatters in R
AHWFEIB
be
No Drive in D
CE
i
No Drive in 2
ER C
ac
No Drive in 1
CER
ac
No Drive in R
HI ER C
be
No Drive in Any
Se~ector
Lever Position
ACWFER
c
Lockup in D
Cl J
bgc
Lockup in 2
CHI
bgc i
Lockup
in
1
GJE
bgc
Lockup in R
GJ
age
Parking Lock Binds or Does Not Hold
c
I
Transmission Overheats
OG
n
Maximum Speed Too Low, Poor Acceleration
n
Transmission Noisy in N
F
ad
Transmission Noisy in First, Second, Third, or Reverse Gear
F
habd
Transmission Noisy in P
F
d
Fluid Leak
MNOPQSTUX
jmp
Probably Trouble Sources
A.
Fluid Level
S
.
Extension Housing to Case Gaskets and Lockwashers
B.
Vacuum Diaphragm Unit or Tubes
T.
Center Support Bolt Lockwashers
C.
Manual Linkage
u.
Extension Housing Rear Oil Seal
D.
Governor
w
.
Perform Control Pressure Check
E.
Valve Body
X
.
Speedometer Driven Gear Adapter Seal
F.
Pressure Regulator
a.
Front Clutch
G.
Front Band
b.
Rear Clutch
H.
Rear Band
c.
Leakage in Hydraulic System
I.
Rear Servo
d.
Front Pump
J.
Front Servo
g.
Parking Linkage
K.
Engine I die Speed
h.
Planetary Assembly
L
Downshift Unkage
i.
Planetary One-Way Clutch
M.
Converter Dr a in PI ugs
j.
Engine Rear Oil Seal
N.
Oil Pan Gasket, Drain Plug or Tube
m.
Front Pump Oil Seal
0.
Oil Cooler and Connect ions
n.
Converter One-Way Clutch
P
.
Manual or Throttle Lever Shaft Seal
p.
Front Pump to Case Gasket
Q.
1/8-inch Pipe Plug in Side of Case
r.
Rear Clutch Piston Air Bleed Valve
R
.
Perform Air Pressure Check
FIG. 21 -
FMX Automatic Transmission Diagnosis Guide
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