1991 LEXUS SC400 Service Repair Manual

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Page 2809 of 4087

LEXUS SC400 1991 Service Repair Manual On±Vehicle Inspection INSPECTION OF DRIVE BELT (See step 1 on page CH±5) INSPECTION OF FLUID LEVEL 1. KEEP VEHICLE LEVEL 2. INSPECT FLUID LEVEL (a) Using SST, connect terminals OP1 and E1 of the

Page 2810 of 4087

LEXUS SC400 1991 Service Repair Manual BLEEDING OF HYDRAULIC COOLING SYSTEM 1. CHECK FLUID LEVEL IN RESERVOIR TANKIf low, add fluid. Fluid: ATF DEXRON II HINT: Check that fluid level is within the ºHOTº level on reser- voir tank. If t

Page 2811 of 4087

LEXUS SC400 1991 Service Repair Manual 2. INSPECT OIL PRESSUREHINT: Before inspecting the oil pressure, first check that the A/C is off. (a) Using SST, connect terminals OP1 and E1 of the check(ºDIAGNOSISº) connector. SST 09843±18020

Page 2812 of 4087

LEXUS SC400 1991 Service Repair Manual Hydraulic Pump COMPONENTS FOR REMOVAL AND INSTALLATION CO±26± COOLIING SYSTEM Electronically Controlled Hydraulic Cooling Fan (Hydraulic Pump) WhereEverybodyKnowsYourName

Page 2813 of 4087

LEXUS SC400 1991 Service Repair Manual REMOVAL OF HYDRAULIC PUMP (See Components on page CO±26) 1. REMOVE BATTERY CAUTION: Work must be started after approx. 20 se- conds or longer from the time the ignition switch is turned to the ºLO

Page 2814 of 4087

LEXUS SC400 1991 Service Repair Manual (b) Remove the two bolts and ignition coil. 7. REMOVE INTAKE AIR CONNECTOR (a) Disconnect the following hoses:(1) Air hose from ISC valve (2) Air hose (from PS air control valve) from intake air c

Page 2815 of 4087

LEXUS SC400 1991 Service Repair Manual 10. REMOVE LH ENGINE WIRE COVERRemove the two bolts and engine wire cover. 11. REMOVE VSV FOR EVAP SYSTEM Remove the two bolts, and disconnect the VSV from cylinder head and timing belt cover. 12.

Page 2816 of 4087

LEXUS SC400 1991 Service Repair Manual 15. REMOVE RH NO.2 TIMING BELT COVER(a) Disconnect the cam position sensor connector from theignition coil bracket. (b) Disconnect the cam position sensor wire from the clamp on the timing belt
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