Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HBGV
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 -           ]
Title: 2ZR-FXE (COOLING): THERMOSTAT: REMOVAL; 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]

REMOVAL

PROCEDURE

1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

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2. DRAIN ENGINE COOLANT (for Engine)

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3. REMOVE RADIATOR SUPPORT OPENING COVER

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4. REMOVE INLET NO. 2 AIR CLEANER

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5. REMOVE AIR CLEANER CAP SUB-ASSEMBLY

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6. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

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7. REMOVE AIR CLEANER CASE SUB-ASSEMBLY

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8. REMOVE AIR CLEANER BRACKET

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9. REMOVE INLET NO. 1 AIR CLEANER

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10. REMOVE ENGINE OIL LEVEL DIPSTICK

(a) Remove the engine oil level dipstick from the engine oil level dipstick guide.

11. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

(a) Disengage the clamp to disconnect the engine wire from the engine oil level dipstick guide.

(b) Remove the bolt and engine oil level dipstick guide from the cylinder block sub-assembly and oil pan sub-assembly.

(c) Remove the engine oil level dipstick guide O-ring from the engine oil level dipstick guide.

12. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

(a) Slide the 2 clips and disconnect the No. 2 radiator hose and No. 3 water by-pass hose from the water inlet with thermostat sub-assembly.

NOTICE:

  • Do not apply force to the water inlet with thermostat sub-assembly when disconnecting the No. 3 water by-pass hose.
  • Do not damage the water inlet with thermostat sub-assembly.

HINT:

When disconnecting the No. 3 water by-pass hose, slide the clip, rotate the hose and pull it straight off the pipe.

*1

No. 2 Radiator Hose

*2

No. 3 Water By-pass Hose

(b) Type A:

(1) Remove the 2 nuts, bolt and water inlet with thermostat sub-assembly.

(2) Remove the gasket from the water inlet with thermostat sub-assembly.

(c) Type B:

(1) Remove the 3 bolts and water inlet with thermostat sub-assembly.

(2) Remove the gasket from the water inlet with thermostat sub-assembly.