The 1990 Mitsubishi Eclipse is known for head gasket issues, which can lead to engine overheating and coolant leaks.

Timing belts in older models like the 1990 Eclipse can wear out or break, causing severe engine damage if not replaced at recommended intervals.

Particularly in the turbocharged versions, the engine's crankshaft can develop excessive end play, leading to performance issues and potentially catastrophic engine failure.

Multi Point Injectors may become clogged or fail, leading to poor engine performance and reduced fuel efficiency.

For turbocharged models, the turbocharger may fail due to wear and tear, leading to reduced engine power and efficiency.

Older seals and gaskets can deteriorate, leading to oil leaks that can cause engine damage if not addressed.

Manual transmissions in the 1990 Eclipse can experience synchro wear, making it difficult to shift gears smoothly.

Wiring and electrical components can become brittle and fail over time, causing various electrical issues in the vehicle.

The 2009 Mitsubishi Eclipse with the SOHC MIVEC engine often suffers from oil leaks, which can be due to a failing valve cover gasket or oil pan gasket.

The SOHC MIVEC engine requires timely replacement of the timing belt. If not replaced at recommended intervals, it can lead to severe engine damage.

Issues such as a failing thermostat, radiator, or water pump can cause overheating problems in this model.

Faulty spark plugs, ignition coils, or fuel injectors can lead to engine misfires, affecting performance and fuel efficiency.

Leaks in the intake manifold gasket can cause rough idling and poor engine performance.

Some owners report excessive oil consumption, which may require frequent oil top-ups between service intervals.

Problems with the automatic transmission, such as slipping or hard shifting, are not uncommon in the 2009 Eclipse.

Common in older vehicles, often due to degraded gaskets or seals.

The 1999 Mitsubishi Eclipse has an interference engine, so timing belt failure can lead to severe engine damage.

May be caused by a failing water pump, clogged radiator, or malfunctioning thermostat.

The turbocharger in turbo models can fail, leading to reduced performance and increased emissions.

Issues such as faulty alternators, starters, or wiring problems can arise.

Fuel injectors or fuel pumps can fail, causing poor engine performance or starting issues.

The idle air control valve can malfunction, leading to erratic idling or stalling.

Especially in turbocharged models, the exhaust manifold can crack due to high temperatures.

Can be caused by faulty spark plugs, ignition coils, or fuel injectors.

Common in older vehicles, often due to degraded gaskets or seals.

The 1999 Mitsubishi Eclipse has an interference engine, so timing belt failure can lead to severe engine damage.

May be caused by a failing water pump, clogged radiator, or malfunctioning thermostat.

The turbocharger in turbo models can fail, leading to reduced performance and increased emissions.

Issues such as faulty alternators, starters, or wiring problems can arise.

Fuel injectors or fuel pumps can fail, causing poor engine performance or starting issues.

The idle air control valve can malfunction, leading to erratic idling or stalling.

Especially in turbocharged models, the exhaust manifold can crack due to high temperatures.

Can be caused by faulty spark plugs, ignition coils, or fuel injectors.

The 1996 Mitsubishi Eclipse is known for oil leaks, often from the valve cover gasket or the oil pan gasket.

This model can experience timing belt issues, which can lead to severe engine damage if not replaced at recommended intervals.

Problems with the Idle Air Control (IAC) valve can cause rough idling or stalling.

For models with a turbocharger (T/C), issues such as turbo lag, oil leakage into the turbo, or complete turbo failure can occur.

Radiator and cooling system components can be prone to leaks or clogging, leading to overheating.

Both automatic and manual transmissions in this model can suffer from issues like slipping, difficulty in shifting, or complete transmission failure.

A faulty crankshaft position sensor can lead to starting problems or the engine stalling.

The fuel pump may fail, causing the engine to not start or to cut out while driving.

The exhaust manifold can develop cracks, leading to exhaust leaks and potential performance issues.

The 2003 Mitsubishi Eclipse with a V6 engine is known for developing oil leaks, often from the valve cover gaskets or oil pan.

The timing belt in this model can wear out or break, leading to potential engine damage if not replaced at the recommended intervals.

Problems with the cooling system, such as a failing radiator, water pump, or thermostat, can cause the engine to overheat.

Issues with the idle air control valve or dirty throttle body can lead to unstable or rough idling.

Faulty ignition coils, spark plugs, or fuel injectors can cause engine misfires, leading to poor performance and fuel economy.

A malfunctioning EGR valve can cause rough idling, stalling, and increased emissions.

A failing fuel pump can cause the engine to sputter, stall, or not start at all.

Leaks in the intake manifold gasket can lead to air/fuel mixture imbalances, causing rough running or stalling.

The 1995 Mitsubishi Eclipse, especially models with turbocharged engines, is notorious for crankshaft walk. This occurs when excessive endplay develops in the crankshaft, which can lead to clutch disengagement issues and eventually engine failure.

The timing belt needs regular replacement as it can wear out or break, causing significant engine damage. If it fails, it can lead to bent valves and damaged pistons.

The T/C (turbocharged) engines can experience turbocharger failure due to wear and tear, leading to reduced performance, smoking, and increased oil consumption.

The head gasket can fail, causing coolant to mix with oil, leading to overheating and potential engine damage.

Both manual and automatic transmissions can develop issues such as gear slippage, rough shifting, or total transmission failure, especially in high-mileage vehicles.

The 1995 Mitsubishi Eclipse is known for various electrical problems, including issues with the ECU (Engine Control Unit), sensors, and wiring harnesses, which can affect engine performance and reliability.

The fuel pump can fail over time, leading to starting issues, stalling, and poor engine performance.

The vehicle can experience idle surge due to issues with the Idle Air Control (IAC) valve or Throttle Position Sensor (TPS), causing unstable idling and stalling.

Radiator, water pump, and thermostat failures are common and can lead to overheating issues if not addressed timely.

The engine can develop oil leaks from various seals and gaskets, including the valve cover gasket, oil pan gasket, and camshaft seals, leading to oil loss and potential engine damage.

The 1990 Mitsubishi Eclipse is known for head gasket issues, which can lead to engine overheating and coolant leaks.

Timing belts in older models like the 1990 Eclipse can wear out or break, causing severe engine damage if not replaced at recommended intervals.

Particularly in the turbocharged versions, the engine's crankshaft can develop excessive end play, leading to performance issues and potentially catastrophic engine failure.

Multi Point Injectors may become clogged or fail, leading to poor engine performance and reduced fuel efficiency.

For turbocharged models, the turbocharger may fail due to wear and tear, leading to reduced engine power and efficiency.

Older seals and gaskets can deteriorate, leading to oil leaks that can cause engine damage if not addressed.

Manual transmissions in the 1990 Eclipse can experience synchro wear, making it difficult to shift gears smoothly.

Wiring and electrical components can become brittle and fail over time, causing various electrical issues in the vehicle.

2001 Mitsubishi Eclipse models are often reported to have oil leaks, particularly around the valve cover gaskets.

The timing belt may wear out or break, leading to serious engine damage if not replaced at recommended intervals.

Problems with the cooling system, such as a failing radiator or water pump, can cause the engine to overheat.

A malfunctioning idle control valve can lead to rough idling or stalling.

Faulty fuel injectors can cause poor fuel economy and engine misfires.

This can lead to starting issues, stalling, or a check engine light.

A failing Exhaust Gas Recirculation (EGR) valve can cause rough idling, poor acceleration, and increased emissions.

Worn-out spark plugs or faulty ignition coils can cause misfires and poor engine performance.

The 2000 Mitsubishi Eclipse is prone to engine oil leaks, often due to worn-out gaskets or seals.

The timing belt can wear out or break, leading to potential engine damage if not replaced at recommended intervals.

Owners report issues with the automatic transmission, including rough shifting and transmission failure.

Faulty spark plugs or ignition coils can cause misfires, leading to poor engine performance.

Coolant leaks from the radiator or hoses can lead to overheating issues.

The suspension components, such as ball joints and bushings, can wear out, leading to a rough ride and handling issues.

Issues with the electrical system, including faulty sensors and wiring problems, can cause various malfunctions.

The fuel pump can fail, leading to starting issues and engine performance problems.

Problems with the brake system, such as worn brake pads and rotors, can affect braking performance.

The air conditioning system may have issues with the compressor or leaks in the refrigerant system, leading to inadequate cooling.

The timing belt in the 1998 Mitsubishi Eclipse with a MPI DOHC 2T/C, 2I/C engine is known to wear out or snap, which can cause significant engine damage if not replaced at the recommended intervals.

This sensor is critical for engine timing, and failure can result in the engine stalling, misfiring, or failing to start.

The turbocharger in the turbocharged models can develop problems such as oil leaks, bearing failure, or reduced boost pressure, affecting engine performance.

The intake manifold gasket can deteriorate over time, leading to vacuum leaks, rough idling, and reduced engine performance.

The IAC valve can fail or become clogged, causing issues with idle speed, stalling, and poor acceleration.

The fuel pump can become weak or fail, leading to symptoms like hard starting, engine sputtering, and poor acceleration.

Faulty ignition coils can lead to misfires, rough running, and reduced fuel efficiency.

Common areas for oil leaks include the valve cover gasket, oil pan gasket, and front and rear main seals.

Issues with the radiator, thermostat, and water pump can lead to overheating, which can cause severe engine damage if not addressed promptly.

The constant velocity joints and axles are prone to wear and tear, leading to clicking noises during turns and potential axle failure.

The timing belt in the 1998 Mitsubishi Eclipse with a MPI DOHC 2T/C, 2I/C engine is known to wear out or snap, which can cause significant engine damage if not replaced at the recommended intervals.

This sensor is critical for engine timing, and failure can result in the engine stalling, misfiring, or failing to start.

The turbocharger in the turbocharged models can develop problems such as oil leaks, bearing failure, or reduced boost pressure, affecting engine performance.

The intake manifold gasket can deteriorate over time, leading to vacuum leaks, rough idling, and reduced engine performance.

The IAC valve can fail or become clogged, causing issues with idle speed, stalling, and poor acceleration.

The fuel pump can become weak or fail, leading to symptoms like hard starting, engine sputtering, and poor acceleration.

Faulty ignition coils can lead to misfires, rough running, and reduced fuel efficiency.

Common areas for oil leaks include the valve cover gasket, oil pan gasket, and front and rear main seals.

Issues with the radiator, thermostat, and water pump can lead to overheating, which can cause severe engine damage if not addressed promptly.

The constant velocity joints and axles are prone to wear and tear, leading to clicking noises during turns and potential axle failure.