Engine & fuel system
4 documented faults — symptoms, causes and workshop fixes.
Loss of coolant
Overview
- Affects
- All models with 2.4/3.0 engines.
- Remedy
- Fit new part
- Parts
- 2 parts
Symptoms
Engine overheating.
Cause
Poor manufacture of engine coolant radiator.
Repair
- Check cooling system for leaks.
- Fit new engine coolant radiator.
Parts2 parts
| Part | Part number | Qty |
|---|---|---|
| Engine coolant radiator (engine code 2AZ-FE) | 16400-28271 | 1 |
| Engine coolant radiator (engine code 1MZ-FE) | 16400-20271 | 1 |
Data: Motorwise Workshop. Bulletin 3.
Erratic engine running
Overview
- Affects
- All models.
- Remedy
- Fit new part
Symptoms
Low fuel pressure.
Cause
Aftermarket fuel filter fitted.
Air ingress into fuel hoses at fuel filter due to faulty O-rings.
Repair
- Fit original equipment fuel filter.
- Fit new fuel filter O-rings.
Data: Motorwise Workshop. Bulletin 4.
Engine will not start after carrying out repair work on camshaft drive system
Crankshaft position (CKP) sensor reluctor incorrectly fitted.
Overview
- Affects
- All models with 2AZ-FE engine code.
Repair steps
- Remove timing chain cover.
- Fit crankshaft position (CKP) sensor reluctor in correct position. Ensure 'F' mark on CKP sensor reluctor faces forward.
- Refit timing chain cover.
Data: Motorwise Workshop. Bulletin 6.
Engine coolant leak from cylinder head area
Failure of cylinder head gasket due to deterioration of cylinder head bolt hole threads in cylinder block. Fix: fit a modified part.
Overview
- Affects
- All models with 2AZ-FE engine code.
- Remedy
- Fit modified part
Repair steps
- Remove cylinder head.
- Repair cylinder head bolt hole threads in cylinder block.
- Refit cylinder head. Fit modified cylinder head gasket.
Data: Motorwise Workshop. Bulletin 7.
Electrical & ignition
1 documented fault — symptoms, causes and workshop fixes.
Electric windows not operating
Overview
- Affects
- All models.
Cause
Multifunction control module faulty.
Data: Motorwise Workshop. Bulletin 5.
Brakes
1 documented fault — symptoms, causes and workshop fixes.
Brakes squeal
Overview
- Affects
- All models.
Cause
Replacement brake pads fitted without anti-squeal shims.
Repair
- Ensure brake pad anti-squeal shims are fitted.
- Replacement shims available separately.
Data: Motorwise Workshop. Bulletin 1.
Steering
1 documented fault — symptoms, causes and workshop fixes.
Squeal from power steering pump when manoeuvring or parking
Cause
Insufficient lubrication of power steering pump front seal.
Repair
- Carefully lift power steering pump seal lip and lubricate contact surface.
Data: Motorwise Workshop. Bulletin 2.
Glossary
Technical terms used in this guide.
- CKP
- Crankshaft position sensor — tells the engine control module where the crankshaft is in its rotation
- Crankshaft Position
- Where the crankshaft is in its rotation — used for ignition and injection timing
- Fascia
- The dashboard and the surrounding interior panel
- Multifunction Control Module
- The control module that runs shared electrical functions (lights, wipers, locking, and so on)
- Relay
- An electrically operated switch
- Head Gasket
- The seal between the cylinder head and the engine block
Frequently asked questions
What are the common faults with the Toyota Camry 2.4?
This guide contains seven workshop bulletins for the Toyota Camry 2.4. Of these, four concern the engine and fuel system and one the electrical and ignition. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Camry 2.4 have these faults?
No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.
Can I check for Toyota Camry 2.4 faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.