check engine light near me (2023)

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service hours

Your nearest store:

7980 Scarretera
Littleton, Co.
303.515.7308

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Most of the shops are open at night and on weekends.

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Opening hours:

Days)Standard
2a. Un 6A:7:00 a. m. - 7:00 p. m.
SESSION:7h00-18h00
SOL:9h00-17h00

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MORE THAN 500 MILLION VEHICLES REPAIRED SINCE 1926.

Possible Causes of Check Engine Light

A flashing check engine light typically indicates a serious problem with your vehicle's ignition, fuel, or emissions systems. If the check engine light is on or blinking, it's time to visitYour nearest Firestone Complete Auto Care storeso our automotive service professionals can perform diagnostic tests and fix the problem. Delay diagnosis and necessary testsengine repairsit can cause your vehicle problems and repair costs to add up quickly. Although it's impossible to say exactly why a Check Engine Light is on or blinking without examining the vehicle and running diagnostic tests, there are generally eight possible causes of a constant or blinking Check Engine Light. Read below for more details!

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(Video) Check Engine Light On in Your Car? The Truth About What it Means
check engine light near me (4)

If the check engine light is on but steady instead of blinking, it means there is a problem and it is best not to ignore it. Alternatively, a flashing check engine light means the engine is misfiring and unburned fuel is reaching the exhaust system. This is a serious problem that can damage the catalytic converter. If the Check Engine Light is illuminated, an engine diagnostic is recommendedavoid costly engine repairs.

1. Defective oxygen sensor

Hidden in the tailpipe of your vehicle are several small oxygen sensors that constantly test the exhaust system to measure the air-fuel ratio. The sensor transmits this data to your vehicle's computer, which uses this information to create an optimal air/fuel mixture based on driving conditions. Therefore, the symptoms of a faulty oxygen sensor are not apparent to many drivers.engine control unitIt may be the first time you realize there is a problem. Fixing a major maintenance issue like a faulty oxygen sensor can improve your vehicle's fuel efficiency by up to 40%.according to the US Department of Energy.

2. Loose or damaged fuel cap

The check engine light could alert you to a problem with your vehicle's gas cap. Fixing the problem can be as simple as turning the gas cap to make sure it is tight, or replacing a damaged or missing gas cap. While it may not seem like a big deal, a loose, missing, or damaged gas cap will cause fuel vapors to escape and the EVAP system to malfunction. This in turn can result in an illuminated Check Engine Light.

3. Defective spark plugs

Spark plugs are small but powerful power packages. They create the electrical spark that ignites your vehicle's engine. But when spark plugs wear out, they can cause problems. If faulty spark plugs are not replaced, they can cause misfiring, wasted fuel, or damage to other parts of the vehicle. Worn spark plugs can also prevent your car from starting.

If the check engine light indicates a problem with the spark plugs, it's best not to delay troubleshooting. Otherwise, your vehicle's problem could be more serious than just a Check Engine Light. Bad spark plug wires, along with bad ignition coils, can also be responsible for the Check Engine Light. An ignition coil generates the current that allows the spark plugs to ignite the fuel-air mixture in the engine's combustion chamber.

make an appointmentat your local Firestone Complete Auto Care and one of our auto care experts can restore the spark to your vehicle.

4. Low battery

A low battery could be responsible for the Check Engine Light to illuminate. When a battery is faulty or not fully charged, it can't send the correct amount of power to your vehicle's computer system. This, in turn, can cause your check engine light to come on. It can also be displayed on the dashboard of your vehiclebattery lightthat comes on when there is a problem with the battery or alternator.

5. Defective Mass Air Flow Sensor

As the name suggests, the mass air flow meter measures airflow so that the engine's computer can help keep the vehicle running smoothly. If this sensor fails, your vehicle may stall, lose fuel efficiency, or idle. In some cases, the mass air flow sensor can be removed and cleaned or replaced with a new one. A problem with the air flow sensor could be related to a dirty air filter; Therefore, installing a new filter may help resolve the sensor issue. Regardless of the cause of a sensor problem, this situation can turn on your check engine light.

6. AGR-Ventilation problem

Your vehicle's Exhaust Gas Recirculation (EGR) rating serves an important purpose: it helps reduce emissions of harmful nitrogen oxides by recirculating measured amounts of exhaust gases into the air intake system.

A faulty EGR valve can trigger your vehicle's Check Engine Light. A bad EGR valve that is not replaced can cause problems with fuel efficiency, power, and acceleration.

7. Damaged catalytic converter

Your vehicle's catalytic converter helps reduce air pollution by removing pollutants from your vehicle's tailpipe. How does it work? The catalyst converts three harmful compounds into less harmful compounds:

  • carbon monoxide
  • hydrocarbons
  • nitrogen oxides

One sign that your catalytic converter may not be working properly is the smell of rotten eggs. Another sign - the Check Engine Light comes on. Damage to a catalytic converter usually occurs when faulty connectors or sensors have been overlooked. This damage can result in reduced fuel efficiency and higher operating temperatures.

You can help prevent your vehicle's catalytic converter from failing by monitoringregularly scheduled maintenance. If you suspect a problem with the catalytic converter, we can take care of that too.

8. Vacuum leak

A vacuum leak could be another reason for your check engine light to come on. While a vacuum leak may not be dangerous, it can cause a loss in vehicle performance and a drop in fuel efficiency. Given the number of parts in your vehicle's vacuum system, it is recommended that you call a trained Firestone Complete Auto Care technician.Fix a suspected vacuum leak.

(Video) Most Common Reasons Your Check Engine Light Is On

WHY DOES THE CHECK ENGINE LIGHT ILLUMINATE WHEN I START THE CAR?

It is common for the check engine light to come on briefly when you first start your vehicle. This is a normal sign that your car is testing its circuitry. However, if the check engine light stays on and won't go off, it's time to see a Firestone Complete Auto Care professional.Run a diagnostic checkto determine the cause of the problem.

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Avoid expensive engine repair costs with routine engine maintenance. Get quality engine repair services from Firestone Complete Auto Care.

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Fine Engine Repair Services to Check Vehicle Smog and Emissions Near Me. Get through your next smog check with an engine repair service from Firestone Complete Auto Care.

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The Firestone Complete Auto Care Near Me car diagnostic test can help identify the root cause of engine problems. Get your engine diagnosed today!

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A flashing Check Engine Light requires immediate vehicle diagnosis. Visit Firestone Complete Auto Care to check engine codes and fix the problem.

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A simple checklist for car engine performance and efficiency. Improve vehicle performance with engine repair services from Firestone Complete Auto Care.

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(Video) How to Diagnose a Check Engine Light - Everything You Need to Know

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Videos

1. The Top 5 Reasons Your Check Engine Light May Be On
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2. What Does The Check Engine Light Mean And What Should You Do About It?
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3. How to diagnose your check engine light
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4. This Can Turn On Your Check Engine Light!?
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5. Flashing check engine light reducing car or truck gas mileage? New spark plugs and coils can help.
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6. Why Is My Check Engine Light On? Easy Fix!
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