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Check Engine Light

The check engine light comes on in a car when the engine is experiencing a problem. Ask questions here about your car's check engine light.

7,238 Questions

2000 surburban service engine soon light turn off?

If the "Service Engine Soon" light on your 2000 Suburban has turned off, it may indicate that the issue it was signaling has resolved itself, or that the vehicle's onboard diagnostic system has reset. However, it's essential to have the vehicle checked to ensure that no underlying problems persist. You can use an OBD-II scanner to retrieve any stored trouble codes for further diagnosis. Regular maintenance and monitoring are key to preventing future issues.

Reset check engine 1993 Hyundai excel?

To reset the check engine light on a 1993 Hyundai Excel, first, disconnect the negative terminal of the battery and leave it disconnected for about 10-15 minutes. This will reset the vehicle’s computer system and clear the check engine light. After reconnecting the battery, start the car to see if the light has turned off. However, if the light persists, it may indicate an ongoing issue that needs to be diagnosed.

How to check a gen light on 1972 OLDS 442?

To check the generator light on a 1972 Oldsmobile 442, first ensure the ignition is turned on without starting the engine. If the generator light is illuminated, it indicates a potential issue with the charging system. You can test the generator by measuring the voltage at the battery with a multimeter; it should read around 13.5 to 14.5 volts when the engine is running. If the light stays on and the voltage is low, inspect the generator, wiring, and connections for any faults.

Why does YAC light come on in 96 legnum?

The YAC (Yaw Angle Control) light in a 1996 Mitsubishi Legnum typically indicates an issue with the vehicle's stability control system. This could be triggered by sensor malfunctions, wiring issues, or problems with the control module itself. If the light is illuminated, it's advisable to have the vehicle diagnosed using an OBD-II scanner to identify any specific error codes and address the underlying issue. Ignoring this warning could affect vehicle handling and safety.

What does the OD off light mean?

The OD off light indicates that the Overdrive function in a vehicle's transmission has been disabled. Overdrive allows the engine to operate at lower RPMs during highway driving, improving fuel efficiency. When the OD off light is illuminated, it typically means the vehicle is restricted to lower gears, which can be beneficial for towing or driving on steep inclines. If you did not intentionally turn off overdrive, it may be worth checking the vehicle's settings or the owner's manual for more information.

What cause streaks of light?

Streaks of light, often seen in the night sky, are typically caused by meteors burning up as they enter Earth's atmosphere at high speeds. This rapid descent generates intense heat, causing the meteor to glow brightly and create a streak of light known as a meteor trail. Additionally, streaks can occur from artificial sources, such as aircraft contrails or laser light displays.

What does engine light on mean on a 2002 3.0 Jaguar xtype?

The engine light on a 2002 Jaguar X-Type typically indicates that the vehicle's onboard diagnostic system has detected an issue with the engine or emissions system. This could be due to a variety of reasons, such as a loose gas cap, faulty sensors, or more serious engine problems. It's important to have the vehicle scanned for error codes to identify the specific issue, as ignoring the light may lead to more significant damage or reduced performance. Consulting a mechanic for diagnosis and repairs is advisable.

Why is the check engine light on 2003 mercury marquis?

The check engine light on a 2003 Mercury Marquis can illuminate for various reasons, including issues with the engine's performance, emissions system, or sensors. Common causes include a loose or damaged gas cap, faulty oxygen sensors, or issues with the catalytic converter. To diagnose the exact reason, it's advisable to use an OBD-II scanner to retrieve the error codes, which can provide specific insights into the problem. Ignoring the light may lead to reduced performance or further engine damage, so it's important to address it promptly.

Reset engine warning light?

To reset the engine warning light, first, diagnose the underlying issue using an OBD-II scanner. Once the problem is resolved, you can clear the code either through the scanner or by disconnecting the vehicle's battery for about 15 minutes. Reconnect the battery, and the light should turn off. If the light remains on, further investigation may be necessary.

How do you reset the check engine light on a 1994 Mercedes Benz sl500?

To reset the check engine light on a 1994 Mercedes-Benz SL500, you can disconnect the negative battery terminal for about 15 minutes. This will clear the vehicle's computer memory and turn off the light. Alternatively, you may use an OBD-I scanner to read and clear any trouble codes, which can also reset the light. Ensure that any underlying issues are addressed before resetting to avoid future alerts.

Bmw check engine reset?

To reset the check engine light on a BMW, you can use an OBD-II scanner to read and clear the trouble codes that triggered the light. Alternatively, disconnecting the car battery for about 15 minutes can also reset the light, but this may erase other settings. It's essential to address the underlying issue causing the check engine light before resetting it to avoid further problems. Always consult your vehicle's manual or a professional mechanic for specific guidance.

What is trouble code p0457?

Trouble code P0457 indicates a "Evaporative Emission Control System Leak Detected (Fuel Cap Loose/Off)." This code is triggered when the vehicle's onboard diagnostic system detects a leak in the evaporative emissions system, often due to a loose or missing fuel cap. It can lead to increased emissions and may affect fuel efficiency. Resolving this code typically involves checking the fuel cap and the surrounding components for any leaks or damage.

Why does the engine light come on when traveling the highway and there seems to be no power Light will go out after a few starts works fine when travelling at lower speeds?

The engine light may activate when traveling at highway speeds due to a temporary issue, such as a sensor detecting a problem with the engine or emissions system, which may not manifest at lower speeds. This can be caused by factors like a clogged air filter, fuel delivery issues, or a malfunctioning sensor. The light turning off after a few starts suggests that the problem might be intermittent or self-resolving, but it's important to have the vehicle checked for error codes to ensure there are no underlying issues that could affect performance. Ignoring the light could lead to more significant problems down the road.

Can you turn off a heating light for a tortoise at night?

Yes, you can turn off a heating light for a tortoise at night, but it's essential to ensure they have an appropriate temperature gradient in their habitat. Tortoises require a warm basking area during the day, but at night, they can tolerate cooler temperatures as long as they are not exposed to extreme cold. Providing a nighttime temperature that mimics their natural environment is crucial for their health. Always monitor their behavior and health to ensure they are comfortable.

When does check engine light come on 2005 vibe?

The check engine light in a 2005 Pontiac Vibe can illuminate for various reasons, including issues with the engine, emissions system, or other critical components. Common triggers include a loose or damaged gas cap, faulty oxygen sensors, or issues with the ignition system. It's important to use an OBD-II scanner to retrieve the trouble codes, which can help diagnose the specific problem. If the light stays on, it's advisable to have the vehicle inspected by a professional mechanic.

How do you turn off tpms light on an 07 g35?

To turn off the TPMS light on a 2007 Infiniti G35, first ensure that all tires are properly inflated to the recommended pressure. If the light remains on, you may need to reset the system using the TPMS reset button, typically located under the steering wheel or in the glove compartment. Turn the ignition to the "On" position (without starting the engine), then press and hold the reset button until the TPMS light blinks and then turns off. If the light continues to stay on, it may indicate a malfunction in the TPMS that requires professional diagnostic attention.

Reset check engine light 1995 wrx?

To reset the check engine light on a 1995 Subaru WRX, you can disconnect the battery by removing the negative terminal for about 10-15 minutes. This will clear the stored trouble codes and turn off the light. Alternatively, you can use an OBD-I scanner to read and clear the codes if you have access to one. After resetting, it's essential to address any underlying issues that triggered the light to ensure it doesn't come back on.

Saab 900 check engine light reset?

To reset the check engine light on a Saab 900, you can use an OBD-II scanner to clear the trouble codes stored in the vehicle's computer. Alternatively, you can disconnect the negative battery terminal for about 10-15 minutes, then reconnect it, which also resets the system. However, ensure that any underlying issues indicated by the check engine light are addressed before resetting to avoid potential engine damage. Always consult your vehicle's manual for specific instructions related to your model year.

How do you reset oil light in 2007 navigator?

To reset the oil light in a 2007 Lincoln Navigator, first turn the ignition to the "ON" position without starting the engine. Press the gas pedal three times within five seconds. Then, turn the ignition off and start the engine to confirm that the oil light has been reset. If it remains on, repeat the process.

What does trouble code P1289 mean?

The trouble code P1289 typically indicates a problem with the engine coolant temperature sensor or the circuit related to it. This code is often triggered when the Engine Control Module (ECM) detects an abnormal signal from the sensor, which can lead to issues such as poor engine performance, overheating, or inefficient fuel consumption. It's important to diagnose the specific cause, which may involve checking the wiring, the sensor itself, or the engine's cooling system.

Engine light comes on and tachometer goes off?

If the engine light comes on and the tachometer stops working, it could indicate a problem with the vehicle's engine management system or electrical issues. Common causes include a malfunctioning sensor, a faulty ignition system, or a problem with the engine control unit (ECU). It's advisable to have the vehicle diagnosed with an OBD-II scanner to identify any error codes and determine the specific issue. Ignoring these signs could lead to more severe engine problems, so prompt attention is recommended.

How do you reset the computer on 2008 dodge ram 1500 hemi?

To reset the computer on a 2008 Dodge Ram 1500 with a Hemi engine, you can disconnect the negative battery cable for about 15 minutes. This will clear the computer's memory and reset the system. After reconnecting the cable, turn the ignition to the "On" position (without starting the engine) for a few seconds to allow the system to recalibrate. Finally, start the engine and let it idle for a few minutes to complete the reset process.

My motion sensor light will not shut off what do I do?

If your motion sensor light won't shut off, first check if there's any obstruction blocking the sensor that may be causing it to stay activated. Adjust the sensitivity settings on the sensor, as they might be set too high. If the problem persists, try turning the light off at the circuit breaker for a few minutes to reset it. If none of these solutions work, consider consulting the manufacturer's manual or contacting a professional electrician.

What is the defenation of gas cap?

A gas cap is a cover that seals the opening of a vehicle's fuel tank, preventing fuel from spilling and minimizing the evaporation of gasoline into the atmosphere. It typically features a threaded design that allows it to be securely fastened and may include a locking mechanism for added security. Gas caps also help maintain the proper pressure within the fuel system, which is crucial for efficient engine performance.

How serious is a p1078 trouble code?

A P1078 trouble code typically indicates an issue with the air intake system, often related to the throttle position or airflow sensor. While it may not represent an immediate safety hazard, it can lead to decreased engine performance, reduced fuel efficiency, and potential damage to other engine components if not addressed. It's advisable to diagnose and repair the underlying issue promptly to maintain optimal vehicle performance.