Table of Contents
A problem with either your spark plug wires or the spark plugs themselves could cause your check engine light to come on. Ignoring this problem may lead to a clogged catalytic converter, damaged ignition coils, or problems with your oxygen sensor.
What is the most common cause of check engine light?
Replacing a faulty oxygen sensor — a sensor used to optimize a vehicle’s fuel-to-air mixture to increase gas mileage and reduce emissions — is the most common cause for a check engine light. With over 400,000 repairs nationwide, oxygen sensor replacements account for 8% of all check engine light repairs.
Is it safe to drive your car with the check engine light on?
Can you drive a car with the engine light on? It’s okay to drive for a few miles, but be sure to schedule an inspection of the engine as soon as possible. If the check engine light comes on while you’re driving, don’t panic! Just be sure to have your car inspected as soon as possible after the light turns on.
How do you fix a check engine light?
If the check engine light comes on, here are some tips on what you should do: Look for a serious problem that requires immediate attention. Try tightening your gas cap. Reduce speed and load. Use built-in diagnostic services, if available.
What should I check when check engine light is on?
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.
Why is my engine light on but nothing seems wrong?
Normally, the appearance of a check engine light indicates a problem somewhere in your vehicle, but nothing seems amiss. 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.
What does a solid check engine light mean?
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. Get your car diagnosed, although the urgency isn’t the same as if the light was flashing at you.
Can AutoZone check engine light?
Does AutoZone Scan Check Engine Lights? AutoZone can diagnose Check Engine Light codes, yes. If your engine light turned on and you are wondering why, head down to your local AutoZone where one of our store associates can help diagnose the issue through our free Fix Finder service.
How much does it cost to fix engine light?
The costs to fix whatever’s ailing your car — and causing the light to come on — can vary greatly. Repair costs for the most common check engine light problems range from under $20 to almost $1,200, according to CarMD’s analysis of millions of repairs recommended in 2016 in the U.S.
How long does it take to diagnose a check engine light?
A standard diagnostic test can take about an hour to an hour and a half. Of course, more complicated issues that require further diagnosis and where components must be removed for access or testing can take 2-3 hours; depending on the severity of the issue or multiple underlying issues.
What does it mean when the check engine light goes off on its own?
A check engine light will shut itself off if the condition that caused it is remedied. Most of the time, when this light comes on, it indicates that one of the vehicle’s systems, such as ignition, fuel injection, or emission control, is not functioning properly, reducing engine efficiency and performance.
Does check engine light come on for low oil?
Low oil pressure: If your car is low on oil, it can cause your check engine light to go off. This is often shown in its own glowing light along with the check engine light on the dashboard. Overheating: If your car’s engine temperature is heating up, it can once again trigger the check engine light.
Will a dealership buy my car if the check engine light is on?
Most dealerships will use the check engine light malfunction as an excuse to pay you less than the car may be worth. Be ready for a very low offer for the trade in. Your research will show the dealer you will not be taken advantage of.
Can Autozone reset check engine light?
Wondering if the local Autozone can turn off a check engine light? The answer is yes, but… there are a couple things to remember: Local auto parts stores will typically offer to read your codes for free, but not all locations will clear the light due to liability issues.
How long does check engine light stay on after replacing gas cap?
How long does it take for the check engine light to go off after replacing gas cap? As soon as it’s safe, pull over and make sure your gas cap is tight. Once you’re back on the road, your check engine light should go off within 10 or 20 miles.
Can you reset check engine light without disconnecting battery?
Turning the Ignition On and Off Switching the ignition on and off is also one method of hard reset without disconnecting batteries. Put the keys in your ignition and turn your ignition on and off consecutively after a second in each step. Once it is done, see if the engine check light is still coming on or not.
