Esteem GLX Wagon L4-1.8L (1999)
4. Check back pressure by measuring hydraulic pressure with engine idling and hands off steering wheel.
Back pressure: Lower than 1000 kPa (10 kg/cm2, 142 psi)
When back pressure is higher than specified values, check control valve and piping for clogging.
5. Check relief pressure
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Increase engine speed to about 1,500 r/min (rpm). Close gauge valve gradually while watching pressure increase indicated by gauge and take
reading of relief pressure (maximum hydraulic pressure).
Relief pressure:
7200 - 7900 kPa (72 - 79 kg/cm2, 1024 - 1123 psi) 1.6 liter
8200 - 8900 kPa (82 - 89 kg/cm2, 1166 - 1265 psi) 1.8 liter
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When it is higher than specified values, possible cause is malfunction of relief valve.
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When it is lower than specified values, possible cause is either failure of P/S pump or setting of relief valve spring.
