ACURA RL KA9 1996 Service Repair Manual

Troubleshooting
General Troubleshootin g (cont'd )
Assist (excessivel y ligh t steering ) a t
hig h speed .
Shoc k o r vibratio n whe n whee l i s
turne d to ful l lock .
Steerin g whee l wil l no t retur n
smoothly .
If th e proble m is no t correcte d b y
adjustin g th e rac k guide , replace
th e gearbox .
I
f th e measurement s ar e ou t o f
specifications , adjus t th e rac k
guide .
Whee
l alignmen t i s normal .
Chec k th e steerin g whee l opera -
tio n an d powe r assis t chec k (se e
pag e 17-12 ).
A
an d B cylinde r line s ar e nor -
mal , chec k whee l alignmen t (se e
sectio n 18 ). Whee
l alignmen t i s abnormal ,
adjus t a s needed .
A
o r B cylinde r lin e i s deformed ;
replac e it .
Chec
k cylinde r line s A an d B fo r
deformation .
Chec
k th e rac k guid e fo r prope r
adjustmen t (se e pag e 17-16 ).
Chec k th e rac k guid e fo r prope r
adjustmen t (se e pag e 17-16 ).
Rac k guid e is adjuste d properly .
Chec k th e bel t fo r slippag e an d
adjus t a s necessar y (se e pag e
17-15 ).
If th e proble m is no t correcte d b y
adjustin g th e rac k guide , adjus t
th e fron t whee l alignmen t (se e
sectio n 18 ).
Rac k guid e wa s backe d of f exces -sively.
Adjus t th e rac k guide .
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Install th e powe r steerin g pressur e
gauge . Clos e th e pressur e contro l
valv e full y an d measur e th e pum p
pressur e (se e pag e 17-17 ). Adjus
t bel t tensio n (se e pag e
17-15 ) o r replac e belt .
Adjus
t rac k guid e (se e pag e 17-16 ).
I f th e proble m is no t correcte d b y
adjustin g th e rac k guide , replac e
th e gearbox .
Adjus t bel t tension . Replac e th e
belt , i f necessar y (se e pag e 17-15 ).
I f th e engin e stall s whe n th e whee l
i s turne d whil e th e vehicl e i s
stoppe d o r movin g a t lo w speed ,
adjus t idl e spee d (se e sectio n 11 ).
Chec k powe r steerin g flui d level . I f
leve l i s excessivel y low , chec k fo r
leak s i n th e system . Ad d flui d t o
th e specifie d level .
I f flui d leve l i s OK , chec k O-ring s
an d seal s o n bot h end s o f th e
pum p inle t hose , an d th e P/ Spum p housin g matin g surface s
an d driv e shaf t oi l sea l fo r suctio n
leaks . Replac e part s a s necessary .
Chec k i f pum p pressur e i s withi n
th e rang e 7,80 0 - 8,80 0 kP a (8 0 - 9 0
kgf/cm
2, 1,13 8 - 1,28 0 psi ) an d th e
gaug e needl e trave l i s 50 0 kP a ( 5
kgf/cm
2, 7 1 psi ) o r less . Chec k th e
flo w contro l valv e i f th e needl e
trave l exceed s 50 0 kP a ( 5 kgf/cm
2,
7 1 psi) . I f th e flo w contro l valv e i s
normal , replac e th e pum p a s a n
assembly .
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Troubleshooting
Noise an d Vibratio n
NOTE: Pum p nois e i n firs t 2- 3 minute s afte r startin g i n col d weathe r i s normal .
Check th e rac k guid e fo r prope radjustmen t (se e pag e 17-16 ).
CAUTION : Whe n inspecting , d o no t hol d th e steerin g whee l al l th e wa y
t o th e righ t o r th e left .
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If pum p nois e is abnormall y loud ,remov e an d inspec t th e pum p fo r
wea r an d damag e (se e pag e
17-25 ).
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Troubleshooting
Fluid Leak s
Check th e gearbo x assembl y fo r oi l leak s carefully . Oi l ca n lea k ou t o f variou s points , dependin g o n locatio n o f th e fault y
oi l seals/sea l rings . Chec k th e followin g befor e removin g th e gearbo x fro m th e frame .
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Replace fron t sea l (se e pag e 17-25 ).
Replac e th e leakin g o r sea l (se e
pag e 17-25 ).
I f th e housin g stil l leaks , replac e
the pump .
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Inspection an d Adjustmen t
Steering Operatio n
Place th e fron t wheel s i n th e straigh t ahea d position ,
an d measur e th e distanc e th e steerin g whee l ca n b e
turne d withou t movin g th e fron t wheels .
ROTATIONA L PLAY : 0 - 1 0 m m (0 - 0.3 9 in )
If th e pla y exceed s th e servic e limit, perfor m rack guid e
adjustmen t (se e pag e 17-16 ).
I f th e pla y i s stil l excessiv e afte r rac k guid e adjustment ,
inspec t th e steerin g linkag e an d gearbo x (se e pag e
17-14 ).
Powe r Assis t Chec k wit h Vehicl e
Parked
1. Chec k th e powe r steerin g flui d leve l (se e pag e 17-16 )
an d pum p bel t tensio n (se e pag e 17-15 ).
2 . Star t th e engine , allo w it t o idle , an d tur n th e steer -
in g whee l fro m lock-to-loc k severa l time s t o war m
up th e fluid .
3. Attac h a sprin g scal e to th e steerin g wheel . Wit h th e
engin e idlin g an d th e vehicl e o n a clean , dr y floor ,
pul l th e scal e a s shown . Rotat e th e steerin g whee l
mor e tha n 9 0 degre e angl e b y pullin g th e sprin g
scale . Rea d th e figur e o n th e sprin g scal e whil e th e
steerin g whee l i s in motion .
4 . Th e scal e shoul d rea d n o mor e the n 2 5 N (2. 6 kgf ,
5. 7 Ibf) . I f i t read s more , g o o n to ste p 5 .
5 . Sto p th e engine . Disconnec t th e senso r inle t hos e
fro m th e powe r steerin g spee d sensor , an d plu g th e
hos e an d th e senso r fittin g a s shown .
6 . Star t th e engine , an d le t i t idle .
• I f th e readin g i s stil l mor e tha n 2 5 N (2. 6 kgf , 5. 7
Ibf ) th e powe r steerin g spee d senso r i s OK .
Proble m is i n th e pum p o r valv e bod y uni t (se e
Genera l Troubleshooting) .
• I f th e readin g is no w 2 5 N (2. 6 kgf , 5. 7 Ibf ) o r less ,
powe r steerin g spee d senso r leak s internally .
Replac e th e senso r (se e pag e 17-13 ).
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Assist Chec k a t Roa d Spee d
Assist (excessivel y ligh t steering ) a t hig h speed :
1 . Chec k th e powe r steerin g flui d leve l (se e pag e 17-16 ),
an d pum p bel t tensio n (se e pag e 17-15 ).
2 . Star t th e engine , allo w it t o idle , an d tur n th e steerin g
whee l fro m lock-to-loc k severa l time s t o war m u p th e
fluid .
3. Sto p th e engine . T o simulat e speed s abov e 6 2 mp h
(10 0 km/h) , disconnec t th e hose s fro m th e powe r
steerin g spee d sensor , an d connec t the m to th e
bypas s tub e joint . Plu g th e en d o f th e bypas s tub e
joint .
Powe r Steerin g Spee d Senso r
Replacemen t
1. Disconnec t th e VS S connecto r fro m th e powe r steer -
in g spee d sensor .
2 . Remov e th e senso r mountin g bolt , the n remov e th e
powe r steerin g spee d senso r fro m th e differentia l
housing .
3 . Disconnec t th e senso r inle t an d outle t hoses , an d
plu g th e hos e fittings .
4 . Installatio n is th e revers e o f th e remova l procedure .
5 . Afte r installin g a ne w sensor , tur n th e steerin g
whee l lock-to-loc k wit h th e engine idling t o blee d ai r
fro m th e system .
6 . Chec k th e reservoir , an d ad d flui d if necessary .
BYPASS TUB E JOIN T07406-001010 1(Included wit h07406-0010001 )
4. Attac h a sprin g scal e to th e steerin g wheel .
Star t th e engine ; wit h th e engin e idlin g an d th e vehi -
cl e o n a clean , dr y floor , pul l th e scal e a s shown .
Rotat e th e steerin g whee l mor e tha n 9 0 degree s b y
pullin g th e sprin g scale . Rea d th e figur e o n th e
sprin g scal e whil e th e steerin g whee l i s i n motion .
• I f th e scal e read s mor e tha n 2 5 N (2. 6 kgf , 5. 7
Ibf) , th e valv e bod y uni t i s OK .
Th e powe r steerin g spee d senso r abnormal .
Replac e th e sensor , an d chec k b y roadtesting .
• I f th e readin g is no w 2 5 N (2. 6 kgf , 5. 7 Ibf ) o r less ,
proble m is i n th e valv e bod y uni t o r pum p (se e
Genera l Troubleshooting) .
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Steering Linkage and Gearbox
Inspection and AdjustmentProCarManuals.com

BELT TENSIO N GAUG E07JGG - 001010 A
Inspect th e pum p bel t fo r crack s o r an y damage .
Replac e th e bel t wit h a ne w on e if necessary .
Measuremen t withou t Bel t Tensio n Gauge :
Appl y a forc e o f 9 8 N (1 0 kgf , 2 2 Ibf) , an d measur e th e
deflectio n betwee n th e powe r steerin g pum p an d th e
crankshaf t pulleys .
Deflection :
Used Belt : 10. 5 - 12. 5 m m (0.4 1 - 0.4 9 in )
Ne w Belt : 7. 5 - 9. 0 m m (0.3 0 - 0.3 5 in ) 3
. Tur n th e adjustin g bol t t o ge t th e prope r bel t ten -
sion , the n retighte n th e nu t an d bolt .
4 . Star t th e engin e an d tur n th e steerin g whee l fro m
lock-to-loc k severa l times , the n sto p th e engin e an d
rechec k th e deflectio n o f th e belt .
5 . Instal l th e ai r cleane r (ACL) .
Adjustmen t
1. Remov e th e ai r cleane r (ACL) .
2. Loose n th e powe r steerin g pum p mountin g nu t an d
bolt .
Pum p Bel t
NOTE : Whe n usin g a ne w belt , firs t adjus t th e deflectio n
o r tensio n t o th e value s fo r th e ne w belt , the n readjus t
th e deflectio n o r tensio n t o th e value s fo r th e use d bel t
afte r runnin g engin e fo r 5 minutes .
Inspectio n
Attach th e specia l too l t o th e belt , an d measur e th e ten -
sio n o f th e belt .
Tension :
Used Belt : 34 0 - 54 0 N (3 5 - 5 5 kgf , 7 7 - 12 0 Ibf )
Ne w Belt : 69 0 - 88 0 N (7 0 - 9 0 kgf , 15 4 - 20 0 Ibf )
NOTE :
• I f ther e ar e crack s o r an y damag e eviden t o n th e belt ,
replac e it wit h a ne w one .
• Follo w th e manufacturer' s instruction s fo r th e tensio n
gauge.
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