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CRANKSHAFT
I AUTOMATIC TRANSMISSION
TROUBLESHOOTING
13-6
•
Before starting this diagnostic troubleshooting, make sure that the gear position indicator is not
blinking
"-"
(Electrical
system of the
Hondamatic
is normal)
and
all the engine maintenance
items
have
been
performed and are within specifications.
Faulty
drive
performance
of
the
vehicle
,
.
Oil level
inspection
Check the oil
level (page
3-12),
Is
the oil level
correct?
NO
-
Fill the crankcase with recommended oil
(page
3-12)
YES
- GO
TO
STEP 2.
2. Oil pressure test
If
poor
performance occurs only at vehicle maximum speed with
ESP
selected, angle sensor mal-
function
is
the likely
cause.
Periorm sensor inspection
(page
24-41
J.
Check the engine
oil
pressure
(page
4-6),
Is the
oil
pressure
correct?
NO
- Faulty
lubrication system (page
4-5)
YES
- GO TO STEP 3.
3.
Centrifugal
clutch
inspection 1
Test-drive
the vehicle to check the engine speed and vehicle speed condition.
Does vehicle engine
speed
rise,
but vehicle speed does not rise
?
YES
- GO TO STEP
4.
NO
-
GO
TO
STEP 5.
4.
Centrifugal clutch
inspection
2
Check the
cen
trifugal clutch
(page 10-9).
Is
the
centrifugal
clutch
normal condition?
NO
- Correct the faulty
part
YES
-
Faulty automatic
transmission
5.
Automatic transmission bearing inspection
Remove the front
c
rankcase
cover (page
10-5),
and check the automatic transmission
bearing
condi-
tion.
Is the
bearing
normal
condition?
NO
-
Faulty transmission bearing
YES
- GO TO STEP 6.
6.
Sub-transmission
inspection
Check the sub-transmission
(page
12-12).
Is the sub-transmission normal
condition?
NO
- Faulty sub-transmission
YES
- Faulty automatic
transm
ission
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