Over time, seals and gaskets in the engine may wear out, leading to oil leaks. This can result in reduced engine lubrication and potential damage.

The cooling system, including the radiator, water pump, and thermostat, may fail, leading to engine overheating which can cause severe engine damage.

Problems with the ignition system, such as worn spark plugs or a faulty distributor cap, can lead to misfires and poor engine performance.

Issues like clogged fuel injectors or a failing fuel pump can lead to poor fuel delivery, affecting engine performance and efficiency.

The timing belt may wear out or break, which can cause severe engine damage if not replaced at recommended intervals.

Cracked or disconnected vacuum hoses can lead to an imbalance in the air-fuel mixture, causing rough idling and poor engine performance.

Problems with the exhaust manifold, catalytic converter, or muffler can lead to increased emissions and reduced engine efficiency.

Faulty sensors, such as the oxygen sensor or mass airflow sensor, can lead to incorrect fuel mixture regulation, affecting engine performance and emissions.

Common in older engines, oil leaks can occur due to worn gaskets and seals, leading to oil dripping from the engine.

The D15B7 engine is known for head gasket issues, which can cause coolant leaks, engine overheating, and poor performance.

The timing belt in the D15B7 engine should be replaced at regular intervals; failure to do so can result in severe engine damage.

The distributor in this engine can wear out over time, leading to misfires, rough idling, and difficulty starting.

The valve cover gasket can become brittle with age, causing oil leaks around the top of the engine.

The Exhaust Gas Recirculation (EGR) valve can become clogged with carbon deposits, affecting engine performance and emissions.

Issues with the Idle Air Control (IAC) valve can cause erratic idling and stalling problems.

The D15B7 engine, like many older engines, can develop oil leaks over time, often from the valve cover gasket, oil pan gasket, or camshaft seals.

The D15B7 engine uses a timing belt that needs regular replacement. If it fails, it can cause serious engine damage.

This engine is known to experience head gasket issues, which can cause coolant leaks and overheating.

The idle air control valve and throttle body can become dirty or malfunction, causing rough idling or stalling.

Problems with the distributor, such as a worn-out rotor or cap, can lead to misfires and poor engine performance.

Radiator, thermostat, or water pump failures can cause the engine to overheat, which is especially common in older models.

Clogged or failing fuel injectors can lead to poor fuel economy and reduced engine performance.

The exhaust manifold on the D15B7 engine can develop cracks, leading to exhaust leaks and increased noise.

Older engines like the D15B7 may experience failures in sensors like the oxygen sensor or coolant temperature sensor, affecting performance and emissions.

The D15B7 engine, like many older engines, can develop oil leaks over time due to worn gaskets and seals.

The timing belt in the D15B7 should be replaced at regular intervals, as failure can lead to severe engine damage.

Older engines can suffer from overheating due to issues like a failing radiator, thermostat, or water pump.

Due to age, components such as the oxygen sensor or fuel injectors may become less efficient, leading to poor fuel economy.

The valve cover gasket can deteriorate over time, leading to oil leaks around the valve cover.

The distributor in the D15B7 can develop problems such as worn-out bearings or faulty ignition components, leading to misfires or starting issues.

Older engines can suffer from head gasket failure, which can cause coolant leaks and engine overheating.

The idle air control valve or throttle body may become dirty or fail, causing rough or unstable idling.

The exhaust manifold can develop cracks over time, leading to exhaust leaks and decreased performance.