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| Home / Car Engines / Toyota Engines / Toyota 2GR-FKS |
Toyota 2GR-FKS Troubleshooting
| Engine starts up hard or doesn't start |
Gas tank is empty - Add gasoline.
Low-quality gasoline - Change fuel.
Air trapped in fuel system - Bleed air.
Spark plug wire connection are damaged - Check the spark plug wire connection, repair or replace.
Spark plug is damaged - Change spark plug.
Ignition system malfunction - Inspect ignition system and change failed components.
Fuel filter is plugged - Fuel filter needs to be replaced.
Dirty fuel lines - Clean fuel system lines.
Clogged or damaged fuel pump - Test fuel pump and replace if necessary.
Dirty or damaged fuel injectors - Clean or install new fuel injectors.
Low cylinder compression - Check cylinder block and replace worn parts.
| Irregular engine running |
Ignition system malfunction - Inspect ignition system and change failed components.
Air filter element is plugged - Clean or replace air filter.
Spark plug is damaged - Spark plug need to be replaced.
Fuel pump is faulty or clogged - Clean or install new fuel pump.
Improper valve clearance - Adjust to proper valve clearance.
Ignition timing is wrong - Set the ignition timing correctly.
Incorrect low idle setting - Adjust as required.
| Engine stops after starting |
Spark plug is defective - Change spark plug as required.
Dirty or faulty fuel injectors - Service or change fuel injectors.
Ignition coil is damaged - Replace ignition coil as necessary.
Valve springs are bad or broken - New valve springs need to be installed.
Valves sticking - Clean the valves.
| Engine is overheated |
Engine oil level is low - Fill up the oil to required level.
Engine is running overloaded - Load reducing is recommended.
Dirty fuel injectors - Inspect fuel injectors and service as required.
Bad ignition timing - Set the ignition timing properly.
Incorrect valve setting - Adjust valves correctly.
Dirty radiator fins or faulty radiator cap - Clean radiator or change cap.
Insufficient coolant - Add coolant fluid and inspect the cooling system for leaks.
Damaged thermostat - Change thermostat as required.
Faulty water pump - Water pump need to be replaced.
| Abnormal engine knocking or noise |
Low octane gasoline - Use proper gasoline.
Engine overload - Reduce engine load.
Engine oil insufficient - Fill the crankcase with engine oil.
Low idle speed setting is not correct - Correct idle adjustment.
Fuel pump is clogged or faulty - Test fuel pump and replace if necessary.
Main bearings or crankshaft wear - Crankshaft or bearings need to be replaced.
Valve clearance is improper - Adjust valve clearance.
Damaged cylinder bore or piston rings - Change defective parts.
| Engine loses power |
Fuel injectors are dirty or defective - Clean or install new fuel injectors.
Air filter element is plugged - Service or change air filter.
Fuel pump is dirty or defective - Service or change fuel pump.
Defective ignition system - Check ignition and replace faulty components.
Cylinder head gasket is worn - Replace the head gasket.
Valves are burned or stuck - Clean or replace valves.
Damaged cylinder block components - Defective components need to be replaced.
Dirty oil filter element - Service or replace oil filter.
| Engine uses too much fuel |
Clogged air filter - Replace or service air filter.
Clogged or defective fuel injectors - Check fuel injectors and replace if necessary.
Faulty or loose spark plug - Re-tighten or change the spark plug.
Ignition timing is improper - Adjust ignition timing as required.
Worn, stuck, or burned valves - Service or replace valves.
Worn sleeve, piston, or rings - Change defective components.
Excessive valve clearance - Adjust to proper valve clearance.
Low engine compression - Inspect cylinder block and change defective components.
| Engine consuming too much oil |
Defective seals or gaskets - Replace to repair leaks.
Valve stems or guides are damaged - Replace defective valves.
Worn or broken piston rings - Piston rings replacement required.
Worn piston or cylinder liner - Check liner and piston, replace as required.
| Engine backfires |
Clogged fuel injectors - Check fuel injectors and clean if necessary.
Dirty fuel lines - Clean fuel system lines.
Incorrect ignition timing - Adjust ignition timing as required.
Wrong valve setting - Set the valves properly.
Clogged air filter - Change or service air filter.
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