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4X.34
AUTOMATIC TRANSAXLE _ TROUBLESHOOTING
STALL TEST
The object of this test is to check the overall performance of the transaxle and engine by
m e a s u r i n g t h s s t a l l s p e e d s i n t h e D a n d R r a n g e s .
N O T I C E :
.
Perfoim the tost at normal operstion fluid tomporature 50-80 "C |.122-176"F).
.
Do not continuously run this test longer than 5 seconds.
o
To ensure safety, conduct this tast in a wide, clear, level area which provides good traction.
o
T h e s t a l l t e s t s h o u l d a l w a y s b e c a r r i e d o u t i n p a i r s . O n e s h o u l d o b s e r v e t h e c o n d i t i o n o f w h a e l s
o r w h e e l s t o p p e r s o u t s i d e t h e v e h i c l e w h i l e t h 6 o t h 6 r i s p e r f o r m i n g t h e t a s t .
MEASURE STALL SPEED
( a ) C h o c k t h e f r o n t a n d r e a r w h s e l s .
( b ) C o n n € c t a t a c h o m e t e r t o t h e e n g i n e .
a w
( c ) F u l l y a p p l y t h e p a r k i n g b r a k e .
rtl\
(d) Keep your left foot pressed firmly on the brake pedal.
( e ) S t a r t t h s 6 n g i n e .
(f) Shift into the D range. Step all the way down on the accelsrator pedal with your right foot.
O u i c k l y r e a d t h e s t a l l s p 6 e d a t t h i s t i m e .
S t s l l s p e e d :
2 , 4 5 0 + I 5 0 r p m ( 3 S - F E , 5 5 - F E )
( S ) P e r f o r m t h e s a m e t e s t i n R r a n g s .
E V A L U A T I O N
(a) lf the stall speed is tho sams for both ranges without the rear wheels rotating but lower than
soec if ied value:
o
E n g i n s o u t p u t m a y b 6 i n s u f f i c i e n t
.
Stator on€-way clutch is not oporating properly
(b) lf the stall sp6od in D range is highar than specified:
o
Line pressure too low
r
F o r w a r d c l u t c h s l i p p i n g
o
N o . 2 o n e - w a y c l u t c h n o t o p s r a t i n g p r o p e r l y
.
O / D o n s - w a y c l u t c h n o t o p e r a t i n g p r o p e r l y
( c ) l f t h e s t a l l s p e e d i n R r a n g e i s h i g h e r t h a n s p e c i f i e d :
o
Line pressure too low
.
D i r e c t c l u t c h s l i p p i n g
.
First and reverse brake slipping
.
R e a r c l u t c h s l i p p i n g
( d ) l f t h e s t a l l s p e e d i n b o t h R a n d D r a n g e s a r e h i g h e r t h a n s p e c i f i e d :
.
Line pressurs too low
o
l m o r o o e r f l u i d l e v e l
.
O/D direct clutch not operating properly
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