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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

How do you reset fault light on a stilo?

To reset the fault light on a Fiat Stilo, first use an OBD-II scanner to diagnose and clear any error codes stored in the vehicle's computer. After addressing the underlying issue, connect the scanner and select the option to clear or reset the fault codes. Alternatively, you can disconnect the vehicle's battery for about 10-15 minutes, which may also reset the fault light. However, it's advisable to fix any existing issues before resetting the light to ensure safe operation.

How do you reset the engine light on a 2007 suburban?

To reset the engine light on a 2007 Chevrolet Suburban, you can use an OBD-II scanner to clear the trouble codes. Simply connect the scanner to the vehicle's diagnostic port, turn on the ignition, and follow the device's instructions to erase the codes. Alternatively, you can disconnect the battery for about 15 minutes to reset the engine control module, but this may also reset other settings in the vehicle. Always ensure the underlying issue causing the check engine light is addressed before resetting it.

How do you reset run flat light?

To reset the run-flat light on your vehicle, first, ensure that the tires are properly inflated and that there are no issues with the tires themselves. Next, turn on the ignition without starting the engine and press the gas pedal three times within ten seconds. Finally, turn off the ignition and restart the engine; the light should be reset. If the light remains on, consult your vehicle's owner manual or a professional mechanic for further assistance.

How do you reset the check engine light on 1997 chevy silverado?

To reset the check engine light on a 1997 Chevy Silverado, you can either disconnect the negative battery cable for about 15 minutes or use an OBD-II scanner to clear the codes. After reconnecting the battery, the light should turn off if the underlying issue has been resolved. If the light remains on, it indicates that there may still be a problem that needs addressing. Always check for any diagnostic trouble codes before resetting to ensure any issues are properly diagnosed.

Why is the check engine light on 2000 dodge stratus?

The check engine light on a 2000 Dodge Stratus can illuminate for various reasons, including issues with the engine's emissions system, a faulty oxygen sensor, a loose or damaged gas cap, or problems with the ignition system. It may also indicate a need for routine maintenance, such as a spark plug replacement. To accurately diagnose the issue, it's best to use an OBD-II scanner to read the specific trouble codes stored in the vehicle's computer. Addressing the underlying problem promptly can help prevent further damage and improve vehicle performance.

What is a third cylinder misfire?

A third cylinder misfire refers to a situation where the third cylinder in an internal combustion engine fails to ignite properly, leading to a disruption in the engine's performance. This can result in symptoms like rough idling, reduced power, or increased emissions. Common causes include faulty spark plugs, ignition coils, fuel injectors, or issues with the cylinder itself, such as compression problems. Diagnosing and addressing the underlying issue is essential for restoring optimal engine function.

1995 Dodge Stratus ES 2.5 Litre V6 check engine light comes on once engine gets to operating temperature?

If the check engine light on your 1995 Dodge Stratus ES 2.5 Litre V6 activates once the engine reaches operating temperature, it could indicate several issues, such as a faulty sensor (like the coolant temperature sensor), a problem with the emissions system, or a failing catalytic converter. It's advisable to retrieve the diagnostic trouble codes (DTCs) using an OBD-I scanner to identify the specific issue. Once you have the codes, you can narrow down the potential causes and address the problem accordingly. Regular maintenance and inspections can help prevent such issues.

2001 Daewoo lanos check engine light is on Car does not start but if I spray starting fuild into air intake it will start but does not run well and the check engine light is on.?

The check engine light being on indicates that there is a fault with the engine management system, which could be due to issues like a faulty fuel pump, clogged fuel filter, or a malfunctioning sensor. Since the car starts with starting fluid, it suggests that fuel delivery is likely the problem. You should check for fuel pressure, inspect the fuel pump and filter, and also scan the vehicle for diagnostic trouble codes to pinpoint the exact issue. Addressing the fuel system components should help resolve the starting problem and the check engine light.

What is fault code mid128sid21smi3?

Fault code MID 128 SID 21 SMI 3 is typically associated with a diagnostic trouble code in heavy-duty vehicles, indicating an issue related to the engine's aftertreatment system, specifically the diesel particulate filter (DPF) or exhaust gas recirculation (EGR). This code can suggest problems such as excessive soot accumulation, insufficient regeneration cycles, or sensor malfunctions. To address it, a thorough inspection of the DPF, EGR system, and related sensors is necessary, along with appropriate troubleshooting procedures. Always refer to the manufacturer's service manual for specific diagnostic steps and solutions.

How do you reset check engine on 2005 Honda crv?

To reset the check engine light on a 2005 Honda CR-V, you can disconnect the negative battery terminal for about 10-15 minutes. This will clear the engine codes and reset the light. Alternatively, you can use an OBD-II scanner to erase the codes directly if you have access to one. However, it's important to address any underlying issues that triggered the check engine light before resetting it.

How do you reset service lights in my seat Alhambra 2008 diesel?

To reset the service light in a 2008 Seat Alhambra diesel, turn the ignition key to the "on" position without starting the engine. Press the gas pedal three times within 10 seconds. Then, turn the ignition off and back on to check if the service light has been reset. If it remains on, repeat the process.

How do you get rid of service spanner light peugeot 206?

To reset the service spanner light on a Peugeot 206, you need to turn on the ignition without starting the engine. Press and hold the trip reset button on the dashboard, then turn the ignition off and back on while continuing to hold the button. After a few seconds, the light should reset and turn off. Release the button, and the service light should be gone. If it persists, consult your vehicle manual or a professional for further assistance.

What can you create to restart your system incase of a malfunction?

To restart your system in case of a malfunction, you can create a recovery USB drive or a bootable CD/DVD with your operating system's installation files. This allows you to access recovery options, repair system files, or perform a clean reinstall if necessary. Additionally, regularly backing up your important data is crucial, as it ensures you can restore your files in case of a severe system failure.

What code replaced 76645?

The code that replaced 76645 is 76937. This change was made to improve the specificity and accuracy of the coding for certain medical procedures. Always refer to the latest coding guidelines or resources for the most current information.

How do you reset check engine light 2005 Volvo s40?

To reset the check engine light on a 2005 Volvo S40, you can use an OBD-II scanner to read and clear the trouble codes. Alternatively, you can disconnect the car battery for about 10-15 minutes, which will reset the system. After reconnecting the battery, the check engine light should turn off if the underlying issue has been resolved. However, it's important to address any underlying problems that triggered the light before resetting it.

Where are the 4 oxygen sensors located on a 1999 Isuzu Amigo?

On a 1999 Isuzu Amigo, the four oxygen sensors are located in the following positions: one upstream (pre-catalytic converter) on each bank of the engine, typically positioned in the exhaust manifold or just after it; and one downstream (post-catalytic converter) on each bank, located after the catalytic converter in the exhaust system. The exact locations may vary slightly depending on the engine configuration.

What is the cause of the theft light to keep blinking while driving?

The theft light blinking while driving typically indicates that the vehicle's anti-theft system is active. This can happen if the system detects a potential security issue, such as an unauthorized entry or a malfunction in the key fob. In some cases, it may also blink due to a low battery in the key fob or if the vehicle is in "valet mode." If the light remains on or causes starting issues, it's advisable to consult the vehicle's manual or a professional for further diagnosis.

Why does check engine light come on when decelerating?

The check engine light may come on during deceleration due to various issues, such as problems with the engine management system, fuel system, or emissions controls. Common causes include a faulty oxygen sensor, issues with the catalytic converter, or vacuum leaks that affect engine performance when the throttle closes. Additionally, changes in engine load during deceleration can expose existing problems that trigger the light. It's advisable to have the vehicle diagnosed with an OBD-II scanner to pinpoint the exact issue.

Where is the button for the gas cap to open?

The button to open the gas cap is typically located on the driver's side of the vehicle, either on the dashboard near the door or on the center console. In some cars, it may be a lever or a push button, while others may require you to press the gas cap itself to release it. Check your vehicle's owner manual for the exact location, as it can vary by make and model.

How do you check a camshaft sensor on a 1993 eagle talon 2.0 L engine with no turbo?

To check the camshaft sensor on a 1993 Eagle Talon 2.0L engine, first locate the sensor, typically found near the camshaft or cylinder head. Disconnect the electrical connector and use a multimeter to measure the resistance between the sensor terminals; it should fall within the manufacturer's specified range. Additionally, you can check for proper signal output by cranking the engine and observing the voltage at the sensor connector with the multimeter. If the readings are out of range or absent, the sensor may need to be replaced.

How do you reset the check engine light on a 2002 dodge caravan?

To reset the check engine light on a 2002 Dodge Caravan, you can disconnect the negative battery terminal for about 15 minutes, which will clear the computer's memory. Alternatively, you can use an OBD-II scanner to clear the codes that triggered the light. After addressing the underlying issue causing the light to come on, make sure to reconnect everything properly. Always ensure that any necessary repairs have been made before resetting the light to avoid masking potential problems.

What causes the check eng light not to come on when key is in on position?

If the check engine light does not illuminate when the key is in the "on" position, it may indicate a malfunction in the vehicle's onboard diagnostics system or a blown bulb in the dashboard. Additionally, issues with the vehicle's battery or wiring could prevent power from reaching the instrument cluster. It's also possible that the engine control unit (ECU) is not functioning properly. A diagnostic scan can help identify any underlying issues.

Reset the service engine soon light on a 1992 Chevy G30?

To reset the "Service Engine Soon" light on a 1992 Chevy G30, first locate the fuse box and remove the fuse for the "Check Engine" light for about 10 seconds before reinserting it. Alternatively, you can disconnect the negative battery terminal for about 15 minutes to reset the system. After re-establishing the connection, start the engine and check if the light has turned off. If the light remains on, consider scanning for trouble codes, as there may be an underlying issue that needs addressing.

Reaction if egr valve is bad?

If the EGR (Exhaust Gas Recirculation) valve is bad, you may experience several symptoms:

Common Symptoms

Check Engine Light:

The check engine light may illuminate on your dashboard.

Rough Idle:

The engine may idle unevenly or roughly.

Reduced Engine Performance:

You might notice a decrease in acceleration or overall power.

Increased Emissions:

The vehicle may produce higher emissions, potentially failing an emissions test.

Stalling:

The engine may stall at low speeds or while idling.

Poor Fuel Economy:

You may experience decreased fuel efficiency.

Conclusion

If you suspect a bad EGR valve, it's advisable to have it inspected and replaced if necessary to avoid further engine issues.

How do you turn off the sevice engine soon light off on 03 chev tracker 2.0 engine?

To turn off the "Service Engine Soon" light on a 2003 Chevy Tracker with a 2.0 engine, you can use an OBD-II scanner to read any diagnostic trouble codes (DTCs) and clear them. If the underlying issue is resolved, the light will turn off after clearing the codes. Alternatively, you can disconnect the battery for a few minutes, but this may reset other settings. However, it's essential to address any underlying problems causing the light to turn on to prevent it from coming back.