Page 852 of 1395
Uneven or rough steering.Ad,ust the rack gu ide (see page 17- 15).
ll the problem is not corrected byadjusting the rack guide, replacethe gearbox.
Adjust the belttension. Replace thebelt, if necessary (see page 17-14).Belt slipping on pulley.
lf the engine stalls when thewheel is turned while the vehicleis stopped or moving at lowspeed, adjust the idle speed (seesection 111.
ldle speed low or erratic.
Check power steering lluid level. lfthe level is excessively low checkfor leaks in the system. Add fluidto the specified level.
Air in reservoir, or check powersteering tluid level.
lf fluid level is OK, check O-ringsand seals on both ends of thepump inlet hose, and the P/Spump housing mating surlacesand drive shaft oil seal for suction leaks. Check the reservoir forcracks, Replace parts as neces-
Pump belt slipping on pulley(pump stops momentarily).Adjust the belt tension (see page17-14) or replace belt.
Check if pump pressure is normaland the gauge needle travel is 500kPa (5 kgl/cm,, 71 psi) or less.Check the flow control valve if theneedle travel exceeds 500 kPa (5kgflcm' , 71 psi). lI the flow controlvalve is normal, replace the pumpas an assembly,
Install the power steering pres-sure gauge, Close the pressurecontrol valve and shut off valve (if
so equipped) fully and measurethe pump pressure (see page 17-16ot 17 17).
Steering wheel kicks backduring wide turns.
7-7
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Page 854 of 1395
Pump noiseGrating nois€trom pump
Pump noise
Raftle or chattering
Check the fluid lev€1.lt low, fill the reservoir to theproper level. and check for leaks.Tighten or roplace as necessary,
Cavitation caused by air bubblesin the fluid.
Check for a crushed inlet hose ora loose hose clamp allowing airinto the suction side of the system. Check the reservoir forcracks. Tighten or replace as nec-
Check the drive shaft oil seal.
Pump noise up to 2 - 3 minutesafter starting in cold weather isnormal, Compare pump noise atoperatrng temperature to anothervehicle.
ll pump noise is abnormally loud,remove and inspect the pump forwear and damage (see page 17-251.
Tighten or replace the pulley.lI shaft is loose, replace thepump.
17-9
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Page 859 of 1395
Inspection and Adjustment
Pump Belt
When using a new belt. first adjust the deflection or ten-
sion to the values for the new belt, then readjust the
deflection or tension to the values for the used belt after
running engine for five minutes.
Inspection
Note these items during inspection:
a lf there are cracks or any damage evident on the belt,
replace it with a new one.
. Follow the manufacturer's instructions lor the tension
gauge.
'1. Remove the P/S reservoir from the bracket, and set
it aside.
2. Attach the belt tension gauge to the belt with the
gauge face toward the engine, and measure the ten-
sion of the belt.
Remove the belt tension gauge carefully to avoid
hitting the gauge reset lever.
Tension:
Used Belt: 390 - 540 N {40 - 55 kgf, 88 - 121 lbf)
New Belt: 7,[0 - 840 N (75 - 90 kgf, 165 - 198 lbf)
CRANKSHAFT PULLEY
17-14
Measurement without Belt Tension Gauge:
Apply a force ot 98 N (10 kgf,22 lbt) and measure the
deflection between the power steering pump and the
crankshaft oullevs.
Deflection:
Used Belt: 11.0 - 1i1.5 mm {0.'(l - 0.57 in)
New Belt: 7.5 - 10.0 mm {0.30 - 0.39 in)
CRANKSHAFT PULLEY
Adiustment
'1. Loosen the power steering pump mounting bolt
and pump lock bolt.
PUMP MOUNNNG BOLT24 N'm (2.4 kgf'm, 17 lbf ftl
PUMP LOCK BOLT24 N.m 12.4 kgf.m, 17 lbf.ftl
Adjust the belt tension by moving the power steer-
ing pump with a 1/2" drive breaker bar to obtain theproper belt tension, then retighten the mounting
bolt and lock bolt.
Start the engine and turn the steering wheel from
lock-to-lock several times, then stop the engine and
recheck the deflection of the belt.
Measure here.
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Page 871 of 1395
Power Steering Pump
Disassembly (cont'dl
1.
7.
9.
10.
Drain the fluid from the pump.
Hold the steering pump in a vise with soft jaws.
hold the pulley with the special tool, and remove
the pulley nut and pulley. Be careful not to damagethe pump housing with the jaws of the vise.
UNIVERSAL HOLDER07725 - 0030000
Loosen the flow control valve cap with a hexwrench, and remove it.
Remove the O,ring, flow control valve and spring.
Remove the inlet joint and O-ring.
Remove the pump cover and pump cover seal.
Remove the outer side plate, pump cam ring, pump
rotor, pump vanes, side plate and O-rings.
Remove the snap ring, then remove the sub-valvefrom the pump housing.
Remove the circlip, then remove the pump driveshaft by tapping the shaft end with the ptastic ham-mer.
Remove the pump seal spacer and pump seal.
17-26
Inspection
Flow Control Valve
1. Check the flow control valve for wear, burrs, and
other damage to the edges of the grooves in thevalve.
'97 model:
FLOWCONTROL VALVE
Check fordamage to edges.
'98 - 0O mod€ls:
FLOW CONTBOL VALVE
Check for damageto edges.
Insp€d the bore of the flow control valve tor scratchesor wear.
Slip the valve back in the pump, and check that itmoves in and out smoothly. lf OK, go to step 4; ifnot, replace the pump as an assembly. The flowcontrolvalve is not available separately.
CONTROL VALVE
4. Attach a hose to the end of the valve as shown.
FLOW CONTROL VALVE HOSE
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