Last Modified: 01-27-2025 6.11:8.1.0 Doc ID: RM10000000261GB
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: 2ZR-FXE (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during intake manifold removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link
  • Replacement of throttle body assembly
  • Cleaning the deposits from the throttle body assembly

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

PROCEDURE

1. REMOVE THROTTLE BODY ASSEMBLY

Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; 2ZR-FXE (ENGINE CONTROL): THROTTLE BODY: REMOVAL

2. REMOVE RADIATOR SUPPORT OPENING COVER

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; EXTERIOR PANELS / TRIM: FRONT BUMPER (for Sedan without Illumination): REMOVAL+ 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; EXTERIOR PANELS / TRIM: FRONT BUMPER (for Sedan without Illumination): REMOVAL+

3. REMOVE NO. 2 AIR CLEANER INLET

(a) Remove the bolts, clip and inlet No. 2 air cleaner from the inlet No. 1 air cleaner and upper radiator support sub-assembly.

4. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

(a) Remove the air cleaner filter element sub-assembly from the air cleaner case sub-assembly.

5. REMOVE AIR CLEANER CASE SUB-ASSEMBLY

(a) Remove the 2 bolts and air cleaner case sub-assembly from the air cleaner bracket.

6. REMOVE AIR CLEANER SUPPORT BRACKET ASSEMBLY

(a) Remove the 2 bolts and disengage the 2 wire harness clamp and hose clamp to remove the air cleaner bracket from the cylinder block sub-assembly and air conditioning wire, No.1 radiator hose.

7. REMOVE NO. 1 AIR CLEANER INLET

(a) Remove the 2 bolts and inlet No. 1 air cleaner from the intake manifold.

8. REMOVE EGR PIPE ASSEMBLY

(a) Remove the 4 bolts and EGR pipe assembly from the intake manifold and EGR valve assembly.

(b) Remove the inlet EGR gasket from the intake manifold.

(c) Remove the EGR pipe gasket from the EGR valve assembly.

9. REMOVE E.F.I. VACUUM SENSOR ASSEMBLY (MANIFOLD ABSOLUTE PRESSURE SENSOR)

(a) Disconnect the E.F.I. vacuum sensor assembly (manifold absolute pressure sensor) connector.

(b) Disconnect the vacuum hose from the intake manifold.

(c) Remove the bolt and E.F.I. vacuum sensor assembly (manifold absolute pressure sensor) from the intake manifold.

10. DISCONNECT VENTILATION HOSE

(a) Slide the clip and disconnect the ventilation hose from the intake manifold.

11. DISCONNECT ENGINE WIRE

(a) Disengage the 2 clamps.

(b) Disconnect the engine water pump assembly connector.

(c) Remove the bolt and disconnect the wire harness bracket.

(d) Disconnect the 4 fuel injector assembly connectors and purge valve (purge VSV) connector.

(e) Remove the bolt and disengage the clamp to disconnect the engine wire.

12. DISCONNECT ENGINE COVER BRACKET

(a) Remove the bolt and disconnect the engine cover bracket from the intake manifold.

13. DISCONNECT NO. 8 WATER BY-PASS HOSE

(a) Disengage the 2 hose clamps.

(b) Slide the clip and disconnect the No. 8 water by-pass hose from the No. 3 water by-pass pipe.

14. DISCONNECT NO. 2 FUEL VAPOR FEED HOSE

(a) Disconnect the No. 2 fuel vapor feed hose.

(b) Disengage the 2 hose clamps and disconnect the No. 2 fuel vapor feed hose from the intake manifold.

15. DISCONNECT WATER BY-PASS HOSE

(a) Disengage the 2 hose clamps and disconnect the water by-pass hose from the intake manifold.

*1

Water By-Pass Hose

*2

No. 2 Water By-pass Hose

(b) Disengage the 2 hose clamps and disconnect the No. 2 water by-pass hose from the intake manifold.

16. REMOVE INTAKE MANIFOLD

(a) Remove the 3 bolts and 2 nuts and intake manifold from the cylinder head sub-assembly.

Bolt

Nut

17. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET

(a) Remove the No. 1 intake manifold to head gasket from the intake manifold.

18. REMOVE STUD BOLT (w/ Stud Bolt)

HINT:

If a stud bolt is deformed or the threads are damaged, replace it.

(a) Using an E6 "TORX" socket wrench, remove the 2 stud bolts from the intake manifold.