Honda Civic Service Manual page 1080

Troubleshooting
General Troubleshooting
Check the following before you begin:
. Has the suspension been modified in a way that would affect steering?
. Are tire sizes, tire variety and air pressure correct?
. lsthe steering wheel original equipment or equivalent?
. lsthe powersteering pump belt properlyadiusted?
.
ls steeringfluid reservoirfilledto proper level?
. ls the engine idle speed correct and steady?
Hard Steering (Check the powor assist. se€ page 17-3o. lfthe torce is over 29 N (3.0 kgf, 6.6lbo, Procede with this troubleshootinq.)
Abnormal
lluid pressure
{fluid pressure
is too high)
Faulty valve body unit
Relief pres-
sure too low
Abnormal
Faulty llow control valve
(Replace the pump es an
assembly)
C h € c k t h e f e e d s n d r e t u r n c i r c u i t l i n € s a n o n o s e
betw6€n the gearbox and pump for clogging and
d€lormation.
Normal line and hose
Check the pump fluid pressure
(soe page 17-34).
l/easure steady-state tluid pres-
s!re while idling with the both
valves tully open.
It should be 1.500 kPa (15 kgf/cmr,
213 psi) or below.
Normal
Check th€ flow control vslve (see page 17-42).
. Chock the valvo lor smooth movement in the hous-
ing.
. Check the reliefvalve for leaks.
Check the pump fluid pressure
{see page 17-34).
M e a s u r e p u m p r e l i e f p r e s s u r e
while idling with the pressure con-
trol valve Iully closed.
It should be 6,400 - 7,400 kPa (65 -
75 kgflcm,,920 - 1,070 psi)
Normal relisf pressure
1 7 - 2 2
Go to page 17-23
Faulty pump assembly