Acura 2002 RSX Service Manual page 827

Power Steering
Pump Pressure Test with T/N 07406-0010004
Special Tools Required
' P/S joint adapter (pump) 07VAK-P8A011A
. P/S joint adapter plate (pump) 07ZAK-S7CA10O
. P/S joint adapter (hose) 07ZAK-S7CA200
. P/S pressure gauge 07406-001000A
Check the fluid pressure as follows to determine
whether the trouble is in the pump or gearbox.
1. Check the power steering fluid level
( s e e p a g e 1 7 - 1 2 ) .
2. Disconnect the pump outlet hose (A) fromthe
pump outlet with care so as not to spill the power
steering fluid on the frame and other parts. Install
the P/S joint adapter (pump) on the pump outlet (B).
07406-0010001
07zAK-S7CA200
A
6 x l . 0 m m
1 1 N . m
{1.1 kgl.m,
8 tbt.ft)
4 .
07zAK-S7CA100
07vaK-P8A011A
Connect the P/S joint adapter (hose) to the P/S
pressure gauge. then connect the pump outlet hose
(A) to the P/S joint adapter (hose).
Install the P/S pressure gauge to the P/S joint
a d a p t e r ( p u m p ) .
17-10
Open the pressure control valve (A)fully.
A
6. Start the engine and let it idle.
7. Turn the steering wheelfrom lock-to-lock several
times to warm the fluid to operating temperature at
1 5 8 " F ( 7 0 " C ) .
8. Measure steady-state fluid pressure while the
e n g i n e i s i d l i n g . l f t h e p u m p i s i n g o o d c o n d i t i o n ,
the pressu re should be no more than 1,500 kPa { 15
k g l c m ' , 2 ' 1 4 p s i ) . l f t h e p r e s s u r e i s t o o h i g h , c h e c k
the outlet hose or valve body unit (see Steering
System Trou bleshooting ) {see page 17-6).
Raise the engine speed to 3,000 rpm, and measure
the fluid pressure. lf the pump is in good condition,
the pressure should be at least 1,500 kPa {15
kgflcm',214 psi). lfthe pressure istoo low, repair
o r r e p l a c e t h e p u m p .
9. Lower the engine speed and let it idle. Close the
pressure control valve gradually until the pressure
gauge needle is stable. Read the pressure.
Do not keep the pressure control valve
closed more than 5 seconds or the pump
could be damaged by overheating.
1 0 . l m m e d i a t e l y o p e n t h e p r e s s u r e c o n t r o l v a l v e f u l l y .
l f t h e p u m p i s i n g o o d c o n d i t i o n , t h e g a u g e s h o u l d
read at least this specification:
K20A3 Engine model:
6,570 7,260 kPa (67 74 kgf/cm',950 1,050 psi)
K20A2 Engine model:
7,160 7,850 kPa (73 80 kgf/cm,, 1,040 1,140
psil
A low reading means pump output is too low for
f u l l a s s i s t . R e p a i r o r r e p l a c e t h e p u m p .
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