Engine & fuel system
5 documented faults — symptoms, causes and workshop fixes.
Erratic idle
Cause
Exhaust gas recirculation (EGR) valve sticking due to carbon build up.
Repair
- Remove and clean exhaust gas recirculation (EGR) valve.
Data: Motorwise Workshop. Bulletin 4.
Intermittent failure to start
Cause
Engine control (EC) relay failure.
Repair
- Replace EC relay.
Data: Motorwise Workshop. Bulletin 5.
Engine runs erratically
Symptoms
Lack of power. Poor engine performance.
Cause
Engine damage due to build up of sludge.
Repair
- Inspect engine for internal damage. Carry out repairs as necessary.
Data: Motorwise Workshop. Bulletin 6.
Engine starts and cuts out immediately. Trouble code stored: P1300
Symptoms
Failure to start.
Cause
Ignition control module (ICM) faulty.
Repair
- Replace ignition control module (ICM).
Data: Motorwise Workshop. Bulletin 7.
Failure to start
Overview
- Affects
- All models.
- Remedy
- Fit new part
Cause
Faulty multifunction control module (incorporating immobilizer control module).
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Fit new multifunction control module.
Data: Motorwise Workshop. Bulletin 8.
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.
Clutch & gearbox
2 documented faults — symptoms, causes and workshop fixes.
Air conditioning (AC) inefficient
Cause
AC compressor clutch relay faulty.
Repair
- Replace AC compressor clutch relay.
Data: Motorwise Workshop. Bulletin 2.
Engine speed will not increase above 2500rpm until vehicle driven over 25mph (40kph)
Cause
Poor electrical connection between transmission and harness connector.
Repair
- Check transmission wiring harness connector for corrosion or damage. Repair/replace component(s) as necessary.
Data: Motorwise Workshop. Bulletin 3.
Glossary
Technical terms used in this guide.
- EGR
- Exhaust gas recirculation — feeds some exhaust gas back into the intake to cut emissions
- AC
- Air conditioning — the system that cools the cabin
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Immobilizer
- The anti-theft system that prevents the engine from starting without the correct key
- Multifunction Control Module
- The control module that runs shared electrical functions (lights, wipers, locking, and so on)
- Relay
- An electrically operated switch
- Wiring Harness
- The bundled cables that carry power and signals around the vehicle
- Recirculation
- Air-conditioning mode that recirculates cabin air instead of drawing in outside air
Frequently asked questions
What are the common faults with the Toyota Camry 3.0?
This guide contains eight workshop bulletins for the Toyota Camry 3.0. Of these, five concern the engine and fuel system and two the clutch and gearbox. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Camry 3.0 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 3.0 faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.