Lexus IS250 IS220d GSE20 ALE20 4GR-FSE ENGINE CONTROL SYSTEM

CRANKSHAFT POSITION SENSOR - INSTALLATION

1. INSTALL CRANKSHAFT POSITION SENSOR

Apply a coat of engine oil to an O-ring of the crankshaft position sensor.

Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Install the crankshaft position sensor with the bolt.

  • Torque:
  • 10 N*m{ 102 kgf*cm, 7 ft.*lbf}

Connect the crankshaft position sensor connector.

2. INSTALL COMPRESSOR AND MAGNETIC CLUTCH
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Temporarily install the compressor and magnetic clutch onto the stud bolt.

Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Install the compressor and magnetic clutch with the 3 bolts and nut.

  • Torque:
  • 25 N*m{ 255 kgf*cm, 18 ft.*lbf}
  • NOTICE:
  • Tighten the bolts in the order shown in the illustration to install the compressor and magnetic clutch.
3. INSTALL DISCHARGE HOSE SUB-ASSEMBLY
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Remove the attached vinyl tape from the hose.

Apply sufficient compressor oil (ND-OIL 8) to a new O-ring and the fitting surface of the compressor and magnetic clutch.

  • Compressor oil:
  • ND-OIL 8 or equivalent

Install the O-ring onto the discharge hose sub-assembly.

Install the discharge hose sub-assembly onto the compressor and magnetic clutch with the bolt.

  • Torque:
  • 9.8 N*m{ 100 kgf*cm, 87 in.*lbf}
4. INSTALL NO. 1 COOLER REFRIGERANT SUCTION HOSE
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Remove the attached vinyl tape from the hose.

Apply sufficient compressor oil to a new O-ring and the fitting surface of the compressor and magnetic clutch.

  • Compressor oil:
  • ND-OIL 8 or equivalent

Install the O-ring onto the No.1 cooler refrigerant suction hose.

Install the No. 1 cooler refrigerant suction hose onto the compressor and magnetic clutch with the bolt.

  • Torque:
  • 9.8 N*m{ 100 kgf*cm, 87 in.*lbf}
5. INSTALL V-RIBBED BELT
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Install the V-ribbed belt.

While turning the belt tensioner counterclockwise, remove the bar.

  • NOTICE:
Put the backside of the V-ribbed belt on the tensioner pulley and idler pulley.
Check that the V-ribbed belt is properly set to each pulley.
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

If it is difficult to install the V-ribbed belt, perform the following procedure.

Put the V-ribbed belt on every part except the tensioner pulley as shown in the illustration.

While releasing the belt tension by turning the belt tensioner counterclockwise, put the V-ribbed belt on the tensioner pulley.

  • NOTICE:
Put the backside of the V-ribbed belt on the tensioner pulley and idler pulley.
Check that the V-ribbed belt is properly set to each pulley.
6. INSTALL ENGINE UNDER COVER REAR LH
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Install the side cover with the 5 clips.

7. INSTALL ENGINE UNDER COVER
8. INSTALL NO. 1 INLET AIR CLEANER
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Install the inlet air cleaner with the bolt.

  • Torque:
  • 5.0 N*m{ 51 kgf*cm, 44 in.*lbf}
9. INSTALL V-BANK COVER SUB-ASSEMBLY
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Engage the 2 clips on the front of the cover, and then engage the clip on the rear to install the V-bank cover.

  • NOTICE:
Be sure to engage the clips securely.
Do not apply excessive force or do not hit the cover to engage the clips. This may cause the cover to break.
10. INSTALL ENGINE ROOM SIDE COVER LH
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Install the side cover with the 5 clips.

11. INSTALL ENGINE ROOM SIDE COVER RH
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Install the side cover with the 2 clips.

12. CHARGE REFRIGERANT

Perform vacuum purging using a vacuum pump.

Charge refrigerant HFC-134a (R134a).

  • Standard:
  • 430 +- 30 g (15.17 +- 1.06 oz.)
  • SST
  • 07110-58060(07117-58060,07117-58070,07117-58080,07117-58090,07117-78050,07117-88060,07117-88070,07117-88080)

Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

  • NOTICE:
Do not operate the cooler compressor before charging refrigerant as the cooler compressor will not work properly without any refrigerant, and will overheat.
Approximately 100 g (3.53 oz.) of refrigerant may need to be charged after bubbles disappear. The refrigerant amount should be checked by measuring its quantity, and not with the sight glass.
13. WARM UP ENGINE
14. CHECK FOR LEAKAGE OF REFRIGERANT

After recharging the refrigerant gas, check for refrigerant gas leakage using a halogen leak detector.

Perform the operation under the following conditions:

Stop the engine.
Secure good ventilation (the gas leak detector may react to volatile gases other than refrigerant, such as evaporated gasoline or exhaust gas).
Repeat the test 2 or 3 times.
Make sure that some refrigerant remains in the refrigeration system. When compressor is off: approximately 392 to 588 kPa (4 to 6 kgf*cm2 57 to 85 psi)
Crankshaft Position Sensor - Installation. 4GR-FSE ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Using a gas leak detector, check the refrigerant line for leakage.

If a gas leak is not detected on the drain hose, remove the blower motor control (blower resistor) from the cooling unit. Insert the gas leak detector sensor into the unit and perform the test.

Disconnect the connector and leave the pressure switch on for approximately 20 minutes. Bring the gas leak detector close to the pressure switch and perform the test.