Check Engine Light is on

Should the check engine light come on for a few seconds after starting and go off? M
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hi There,
The check engine light indicates that there is likely something wrong with the engine or transmission in your vehicle. It is important to have this diagnosed as soon as possible as it could range from something minor to something more serious. Unfortunately, there are many different reasons for this light to come on and the best way to diagnose is to have the vehicle hooked up to a scanner which will download the engine fault codes indicating more specifically what may be wrong. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

How to Identify and Fix Common car Problems ?

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2016 Jeep Cherokee Check Engine Light Flashing

Other common reasons for a Check Engine Light are faulty emissions control part, a malfunction with the fuel injection system, faulty head gasket, dirty mass airflow sensor, damaged oxygen sensor, or defective spark plugs to name a few.

Jeep Grand Cherokee Check Engine Light Flashing

Other common reasons for a Check Engine Light are a malfunction with the fuel injection system, damaged oxygen sensor, dirty mass airflow sensor, faulty head gasket, faulty emissions control part, or defective spark plugs to name a few.

A loose gas cap is one of the most common reasons for the check engine light to go on. Check that your gas cap is screwed on securely and that it`s in good condition. If you have a tank of bad gas in the car, your check engine light may come on.
Locate the battery and find the negative terminal. Disconnect the negative terminal connector and keep it away from the terminal for about 30 to 60 seconds. Reconnect the negative terminal cable and tighten everything back up. That`s it!
A steady glow typically means something less serious but a flashing check engine light indicates that your vehicle`s engine is in serious trouble and service is needed immediately. If your check engine light is flashing in your Jeep Wrangler, we highly recommend not to drive the vehicle and schedule Jeep service today.
If the engine light comes on solid, it may still be a reason for concern, however it doesn`t immediately need to strike fear in your heart. A solid Check Engine Light can mean something like a loose gas cap, or it can indicate a more in-depth problem like a fuel, timing, or transmission issue.
These problems can range from faults within the electrical system, the engine, fluid levels or to problems within the car`s emissions system. The problem can even be as simple as forgetting to tighten your gas cap – in fact, this is the most common reason why check engine lights appear in the first place.
A check-engine light will shut itself off if the condition that caused it is remedied. So, if your converter is marginal, and you did a lot of stop-and-go driving, which creates high demand for the converter, that might have turned on the check-engine light.
Check your gas cap first. Many vehicles have a loose gas cap indicator that will be triggered before your check engine light comes on. If your gas cap is loose or the seal is not tight, the vapor leakage can cause your fuel system to trigger the check engine light.
Fully depress the accelerator pedal, slowly, three times within 10 seconds. Without pushing the brake pedal, push the Engine Start/Stop button once to return the ignition to the Off/Lock position.
The simplest way to describe the difference is that the Service Engine light informs us of upcoming expected maintenance. On the other hand, the Check Engine light informs you of an unexpected problem occurring in your engine or exhaust system.
In some cars, a yellow check engine light means there is a problem that needs to be investigated and a red or flashing light means there is a serious problem and you need to stop right away. Your gauges will help you to determine problems like overheating and low oil pressure.
It is possible that your automobile`s check engine light has come on because of a false alarm. This being said, if the engine control module (ECM) turned on the check engine light for no reason, the ECM could be malfunctioning itself. This crucial part is the heart of your automobile.
You can judge how serious an issue is by looking at the warning light. The check engine light can show up in two ways: Solid yellow/amber light: Indicates a less urgent issue. Flashing light or red: Indicates a severe problem that needs immediate attention.
Amber engine management light

This is an advisory warning, which indicates an engine issue that affects emissions. In most cases, you`ll be able to continue your journey, but you should get your car examined as soon as possible. It`s always best to check your handbook for advice specific to your car.

Extreme cold weather can make your car battery work harder for your car not just to start, but also to continue operating. Signs of a dying/dead battery include: Engine is slow to crank (i.e. start up) or won`t crank at all. “Check engine” light is on.
2015 Jeep Cherokee Check Engine Light Flashing

Distinctive prevailing reasons for a Check Engine Light are dirty mass airflow sensor, a malfunction with the fuel injection system, faulty head gasket, faulty emissions control part, damaged oxygen sensor, or defective spark plugs to name a few.

Why is my engine light on in my Jeep vehicle? Your Check Engine light will illuminate if your car`s diagnostic system detects a problem related to the engine or related components. For example, you might have a problem with your emissions systems or the catalytic converter.
However, failing to clear a code after a repair could leave you second-guessing the issue or doubling your work to recheck the codes. That`s why you should always make clearing codes an essential part of your repair process.
1) Check your gauges – Look for an indication of low oil pressure or that your vehicle is overheating. If either of these issues are present, turn your vehicle off to prevent any further damage. 2) Inspect the condition of the battery and charging system – If you lose power from the battery, your vehicle will die.
How to Reset a Check Engine Light Without a Scanner. To reset a check engine light without a scanner, disconnect the negative battery cable and wait a few moments. This will reset the diagnostic system in your vehicle, and if the underlying issue has indeed been resolved, the light should go off immediately.
What Does Jeep Grand Cherokee Code P0456 Mean? Jeep Grand Cherokee P0456 definition: Evaporative emission control system leak (small). Repair Urgency: Get this fixed within the next month to prevent drivability problems and excessive fuel consumption.
The P0302 error code indicates that cylinder two is misfiring and not receiving enough spark to its spark plug.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Check engine light refuses to go off after engine replaced
ANSWER : Hello there, you have a long series of issues going on with your 2013 Hyundai Sonata. If you keep getting a repeating oil light on than there is likely a fault in that system.

Since this fault has lasted after the engine was replaced it could be a oil pressure sensor, wiring harness fault, ECU fault, oil pump, oil strainer clogged, or low oil pressure.

To diagnose this issue properly you need a complete vehicle inspection to start from square one and identify the root cause of all this.

Read Full Q/A … : Check Engine Light is on

While driving on freeway truck goes into a limp mode, and the check engine light, abs light, parking break light, service brake
ANSWER : It is possible that you could be having an issue with your powertrain control module. This is somewhat of a common problem on many GM vehicles. I would recommend having your vehicle inspected by the dealership to determine if the powertrain control module is functioning properly. If not, a reflash of the powertrain control module may resolve the issue but often times it must be replaced.

Read Full Q/A … : Check Engine Light is on

Car started to slow down and then the check engine light, battery, and engine oil light came on. What could cause this?
ANSWER : Hi there. It is possible that the battery cable came loose or the wires to the oil pressure sensor has came loose or failed. Check the battery cables and make sure that the terminals are tight and clean. Check the wires to the oil pressure sensor and make sure that they are connected and not broken. If everything looks good, then the oil pressure sensor may have failed. Plus, check the computer for codes and see what is stored. This will lead you to the part that could have failed. I recommend replacing the oil pressure sensor then checking to see if the lights will go out. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from Your Mechanic, that can assist you with the warning lights that came on.

Read Full Q/A … : Check Engine Light is on

2006 Ford Mustang has check engine light on
ANSWER : There are countless potential causes for your illuminated check engine light. The mechanic manually turned off the light, but it came back on because the problem has not been fixed. The first place to start is retrieval of the stored diagnostic trouble codes (DTCs). These codes serve as a starting point for any further diagnostics a mechanic may perform. Codes will be stored anytime the check engine light is on. Since the first mechanic was unable to fix your concern, I recommend giving the professionals at YourMechanic a call. We offer expert check engine light diagnosis and repair.

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Check Engine Light comes on after starting pickup
ANSWER : Hello there, thank you for asking about your 1992 Isuzu Pickup. A professional will have the correct equipment to read OBD1 codes. Retrieving the diagnostic trouble code(s) is the first place to start when diagnosing your vehicle. Increasing RPMs changes engine load, which can in turn affect many different sensors and components, causing the Check Engine Light to illuminate. The only way to narrow down the options and find the culprit is through in person diagnosis with an OEM compatible scan tool. A certified technician from YourMechanic can retrieve the OBD codes at your home or office.

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p0011 code,check engine light one, changed bank 1 vvt solenoid and check engine light still on?
ANSWER : The P0011 code is typically caused by oil issues with the car. I would particularly make sure the engine oil level is not low. The VVT solenoid relies on proper oil levels to do their job. If they don’t have enough oil, they won’t work. You can have a mobile technician from YourMechanic visit your home or office to inspect the Check Engine Light for you. If you follow through with a repair with us you will be reimbursed for the cost of inspection.

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Traction light/reduced engine power and check engine light coming on
ANSWER : Hello. From what you describe, it would appear that your vehicle may be experiencing some sort of intermittent wiring or sensor issue. If the problem occurred again after driving over a bump, then it may be possible that a damaged or loose wire is shorting or having contact issues. A common issue that can cause stalling is a faulty crank position sensor or wiring. I would carefully examine the engine for any loose or damaged wires. If the Check Engine Light comes back on, I would recommend having the trouble codes scanned before resetting the computer.

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2012 equinox reduced power light engine light and traction light came on. Lost a lot of power got home and all light except engine
ANSWER : Your car has what is called a "safe mode" that will be engaged by the computer when it detects that something critical has gone wrong related to any of the major components in your engine chassis or power train. This may be related to a number of things, most of which should have been registered in the computer when the check engine light came on. I recommend having an expert from YourMechanic come to your location to inspect your check engine light and diagnose any codes registered by your vehicle’s computer.

Read Full Q/A … : Check Engine Light is on