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| Home / Car Engines / Toyota Engines / Toyota 2GR-FSE |
Toyota 2GR-FSE Troubleshooting
| Engine starts hard or will not start |
No gasoline in tank - Fill fuel up.
Incorrect fuel grade - Use correct fuel grade.
Air in the fuel system - Air bleeding.
Disconnected or loose spark plug wire - Inspect spark plug wiring connection, change or repair.
Spark plug is faulty - Spark plug need to be replaced.
Ignition system failure - Inspect ignition system and change failed components.
Clogged fuel filter - Change fuel filter.
Dirt in the fuel lines - Clean fuel lines.
Fuel pump is faulty or clogged - Test fuel pump and replace if necessary.
Fuel injectors are damaged or dirty - Check fuel injectors and replace if necessary.
Engine has low compression - Check cylinder block and replace defective parts.
| Engine runs roughly |
Defective ignition system - Inspect ignition system and change faulty parts.
Air filter is blocked - Change or service air filter.
Spark plug is defective - Replace spark plug.
Dirty or damaged fuel pump - Clean or replace fuel pump.
Valve clearance is incorrect - Check and adjust.
Bad ignition timing - Adjust ignition timing correctly.
Too low idle RPM - Adjustment required.
| Engine stalls after starting |
Defective spark plug - Spark plug need to be replaced.
Clogged or defective fuel injectors - Clean or install new fuel injectors.
Faulty ignition coil - Replace ignition coil as necessary.
Valve springs are bad or broken - Install new valve springs.
Stuck valves - Service the valves.
| Engine overheats |
Engine oil level is low - Need to add engine oil.
Engine overloaded - Reduce the load.
Clogged fuel injectors - Service or replace fuel injectors.
Improper ignition timing - Adjust ignition timing as required.
Valve setting is incorrect - Valves needs to be set correctly.
Damaged radiator cap or dirty radiator core - Clean radiator or change cap.
Low coolant level - Add coolant and check the components of cooling system.
Defective thermostat - Change thermostat.
Water pump is defective - Install new water pump.
| Engine knocking or noise |
Low octane fuel - Use proper gasoline.
Engine overload - Load reducing required.
Engine oil level low - Checking oil level and add if necessary.
Improperly adjusted low idle speed - Correct idle settings.
Dirty or faulty fuel pump - Check fuel pump and change if required.
Main bearings or crankshaft wear - Install new parts as as required.
Valve clearance is incorrect - Check and adjust.
Damaged cylinder bore or piston rings - Replace faulty components.
| Engine power is too low |
Fuel injectors are faulty or clogged - Inspect fuel injectors and change as required.
Clogged air filter - Replace or service air filter.
Dirty or damaged fuel pump - Service or replace fuel pump.
Defective ignition system - Check ignition and replace faulty components.
Blown cylinder head gasket - Replace the gasket as required.
Valves are burned or stuck - Service or replace valves.
Worn cylinder block parts - Defective parts need to be replaced.
Plugged oil filter - Change or clean oil filter.
| Engine uses too much fuel |
Clogged air filter - Replace or service air filter.
Dirty or defective fuel injectors - Check fuel injectors and change if required.
Spark plug is defective or loose - Spark plug need to be tightened or replaced.
Incorrect ignition timing - Adjust ignition timing as required.
Worn, stuck, or burned valves - Change or service valves.
Worn sleeve, piston, or rings - Replace defective components.
Valve clearance is not correct - Adjustment procedure required.
Low compression - Check and replace worn parts.
| Engine oil consumption is too high |
Worn gaskets or seals - Replace defective parts.
Valve guides or stems are damaged - Install new valves.
Seized or wear piston rings - Piston rings replacement required.
Scored piston or cylinder liner - Inspect piston and liner, replace as required.
| Engine backfires |
Dirty fuel injectors - Inspect fuel injectors and service as required.
Fuel lines clogging - Clean fuel lines.
Improper ignition timing - Adjust ignition timing as required.
Valve setting is incorrect - Valves needs to be adjusted properly.
Air filter is blocked - Replace or service air filter.
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