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Home / Car Engines / Toyota Engines / TOYOTA 3S-GTE

Toyota 3S-GTE Troubleshooting

Engine Model: Toyota 3S-GTE

Engine Type: 4-cycle 4-cylinder turbocharged gasoline engine

Total Displacement: 120.8 cu.in (2.0 L)

Rated Engine Power: 111 Hp (82 kW) at 5600 rpm

Fuel System: Multi-point fuel injection (MPFI)

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Engine won't start or difficult to start

No fuel in fuel tank - Add gasoline.
Wrong grade of gasoline - Use correct gasoline grade.
Air in the fuel system - Air bleeding.
Disconnected or loose spark plug wire - Check spark plug wiring connection, repair or change.
Faulty spark plug - Spark plug need to be replaced.
Ignition system problems - Test ignition and replace failed parts.
Clogged fuel filter - Replace fuel filter.
Dirty fuel lines - Clean fuel lines.
Fuel pump is faulty or clogged - Service or replace fuel pump.
Fuel injectors are faulty or clogged - Service or change fuel injectors.
Low compression - Check and replace worn parts.

Engine runs intermittently

Ignition system problems - Test ignition and replace failed parts.
Air filter element is plugged - Clean or replace air filter.
Spark plug is defective - Replace spark plug.
Dirty or damaged fuel pump - Service or change fuel pump.
Improper valve clearance - Need to adjust valve clearance.
Bad ignition timing - Adjust ignition timing as required.
Incorrectly adjusted low idle speed - Adjust idle speed.

Engine starts but then shuts off

Spark plug is defective - Change spark plug as required.
Clogged or defective fuel injectors - Clean or change fuel injectors.
Damaged ignition coil - Install a new ignition coil.
Bad or damaged valve springs - Valve springs need to be changed.
Valves are stuck - Valves must be cleaned.

Engine is overheated

Low engine oil level - Fill the crankcase with engine oil.
Engine is running overloaded - Reduce engine load.
Clogged fuel injectors - Inspect fuel injectors and service as required.
Ignition timing is incorrect - Adjust ignition timing as required.
Valve setting is incorrect - Set the valves properly.
Dirty radiator core or faulty radiator cap - Clean radiator or replace cap.
Coolant level is low - Fill the cooling system and check components for leaks or other faults.
Thermostat is defective - Change thermostat.
Damaged water pump - Water pump need to be replaced.

Engine noises or knocks

Low octane gasoline - Use correct fuel.
Excessive engine load - Load reducing required.
Low engine oil level - Fill up the engine oil.
Incorrect low idle setting - Need to adjust idle speed.
Dirty or damaged fuel pump - Test fuel pump and replace if necessary.
Main bearings or crankshaft wear - Have bearings or crankshaft replaced.
Valve clearance is improper - Adjustment procedure required.
Piston rings or cylinder bore are worn - Change faulty components.

Engine loses power

Fuel injectors are faulty or clogged - Service or change fuel injectors.
Clogged air filter - Clean or replace air filter.
Fuel pump is damaged or dirty - Clean or change fuel pump.
Ignition failure - Check ignition and replace faulty components.
Cylinder head gasket is defective - Replace cylinder head gasket.
Valves are burned or stuck - Clean or change valves.
Worn cylinder block components - Defective parts need to be replaced.
Clogged oil filter - Service or change oil filter.

Engine using too much gasoline

Air filter element is plugged - Service or replace air filter.
Clogged or defective fuel injectors - Test fuel injectors and replace if necessary.
Defective or loose spark plug - Re-tighten or replace spark plug.
Improper ignition timing - Set the ignition timing correctly.
Valves are worn, burned or stuck - Service or replace valves.
Worn sleeve, piston, or rings - Replace defective components as required.
Valve clearance is incorrect - Adjust valve clearance according to specifications.
Bad compression - Check and change damaged parts.

Engine oil consumption is too high

Gaskets or seals can be faulty - Defective components must be replaced.
Valve guides and stems are worn - Install new valves.
Piston rings are seized or worn - Change piston rings.
Scored cylinder liner or piston - Inspect piston and liner, change as required.

Engine backfires

Fuel injectors are clogged - Inspect fuel injectors and service as required.
Dirt in the fuel lines - Clean fuel system lines.
Ignition timing is improper - Ignition timing needs to be set properly.
Valve setting is wrong - Adjust valves correctly.
Clogged air filter - Replace or clean air filter.

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