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| Home / Car Engines / Toyota Engines / Toyota 5E-FE |
Toyota 5E-FE Troubleshooting
| Engine starts hard or will not start |
No gasoline in tank - Fill gasoline up.
Wrong fuel grade - Change gasoline.
Fuel system clogged - Repair or replace.
Spark plug wiring connection is defective - Inspect spark plug wiring connection, change or repair.
Defective spark plug - Install new spark plug.
Defective ignition system - Inspect ignition system and change failed components.
Clogged fuel filter - Fuel filter needs to be replaced.
Clogged fuel lines - Clean fuel lines.
Dirty or defective fuel pump - Clean or install new fuel pump.
Dirty or damaged fuel injectors - Check fuel injectors and change if required.
Poor cylinder compression - Check cylinder block and change worn parts.
| Engine runs unevenly |
Ignition system problems - Inspect ignition system and change failed components.
Plugged air filter - Replace or service air filter.
Spark plug is defective - Change spark plug.
Fuel pump is damaged or dirty - Clean or change fuel pump.
Improper valve clearance - Adjust to proper valve clearance.
Wrong ignition timing - Adjust ignition timing correctly.
Too low idle RPM - Adjustment required.
| Engine starts and stalls immediately |
Defective spark plug - Install new spark plug.
Dirty or faulty fuel injectors - Check fuel injectors and replace if necessary.
Ignition coil is defective - Ignition coil should be replaced.
Worn or loose valve springs - Install new valve springs.
Stuck valves - Valves must be cleaned.
| Engine is overheated |
Engine oil level is insufficient - Check and refill engine oil.
Excessive engine load - Reduce the load.
Fuel injectors are clogged - Need to clean fuel injectors.
Ignition timing is incorrect - Set the ignition timing correctly.
Incorrect valve setting - Set the valves correctly.
Faulty radiator cap or dirty radiator fins - Change cap or clean radiator.
Insufficient coolant - Fill the cooling system and check components for leaks or other faults.
Thermostat is faulty - Replace thermostat.
Water pump is defective - Replace water pump.
| Abnormal engine knocking or noise |
Low octane gasoline - Use correct gasoline.
Engine overload - Reduce load.
Low engine oil level - Checking oil level and add if necessary.
Wrong adjustment of low idle speed - Adjust as required.
Fuel pump is faulty or clogged - Check fuel pump and replace if necessary.
Worn main bearings or crankshaft - Crankshaft or bearings need to be replaced.
Improper valve clearance - Need to adjust valve clearance.
Damaged piston rings or cylinder bore - Change defective parts.
| Low engine power |
Fuel injectors are clogged or faulty - Check fuel injectors and replace if necessary.
Air filter is dirty - Service or change air filter.
Dirty or damaged fuel pump - Service or change fuel pump.
Ignition system is defective - Inspect ignition system and change failed components.
Damaged cylinder-head gasket - Change cylinder head gasket.
Valves are stuck or burned - Clean or replace valves.
Cylinder block components are damaged - Replace defective components.
Oil filter is dirty - Clean or replace oil filter.
| High fuel consumption |
Air filter is blocked - Service or replace air filter.
Dirty or defective fuel injectors - Clean or install new fuel injectors.
Faulty or loose spark plug - Tighten or change the spark plug.
Incorrect ignition timing - Ignition timing needs to be set properly.
Valves are worn, burned or stuck - Change or service valves.
Piston, sleeve, or rings are damaged - Change defective parts.
Improper valve clearance - Adjustment procedure required.
Poor engine compression - Check cylinder block and replace damaged components.
| Engine consuming too much oil |
Gaskets or seals can be faulty - Replace to repair leaks.
Valve stems or guides are damaged - Valves need to be changed.
Piston rings are stuck or worn - Change piston rings.
Cylinder liner or piston is damaged - Inspect liner and piston, fit new parts as necessary.
| Engine backfires |
Clogged fuel injectors - Service or replace fuel injectors.
Fuel lines are clogged - Service fuel lines.
Ignition timing is incorrect - Ignition timing needs to be set properly.
Valve setting is incorrect - Set the valves properly.
Dirty air filter element - Clean or replace air filter.
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