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Store HoursToday: 07:30 am - 05:00 pm Open Now
Service Hours

Sun: Closed

Mon: 07:30am - 05:30pm

Tue: 07:30am - 05:30pm

Wed: 07:30am - 05:30pm

Thu: 07:30am - 05:30pm

Fri: 07:30am - 05:00pm

Sat: Closed

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4.94       192 reviews

4.94 stars - based on 192 reviews

209-900-8342

Auto & Fleet Mechanic

5160 Pentecost Drive #C
Modesto, CA 95356

Founded on Quality, Integrity & Experience

You may be driving smoothly along when all of a sudden you see the “Check Engine” light illuminate on your instrument panel. You start to worry about what causes the check engine light to come on. This little light could be the first warning sign of engine trouble. Unless your car doesn’t run at all, head to your auto shop as soon as you can for a diagnostic test. Your mechanic will hook up a specialized computer to your car to “read” what is happening under the hood. Potential problems can be diagnosed and fixed while they are small issues, before they turn into major engine repair.

There are several issues that can cause the check engine light to come on:

  1. Damaged Gas Cap – If the gas cap is loose or cracked, fuel vapors leak out and can throw the whole fuel system off.
  2. Faulty Oxygen Sensor – If the oxygen sensor fails, it cannot provide the right data to the car’s computer to properly monitor the unburned oxygen from the exhaust and how much fuel should be burned.
  3. Failing Catalytic Convertor – If the catalytic convertor fails, it can’t do its job of reducing exhaust gases (by converting carbon monoxide and other harmful materials into harmless emissions).
  4. Faulty Mass Airflow Sensor – The mass airflow sensor tells the car's computer to add the proper amount of fuel based on the air coming through to the engine. If it becomes clogged or is not installed properly, it will fail.
  5. Dirty Spark Plugs and Wires – The spark plug seals the combustion chamber and provides a gap for a spark to jump across and initiates combustion in your engine. You will start to notice misfiring when they go bad.

Any of the problems listed above can result in reduced fuel efficiency, an increase in toxic fumes from your exhaust, loss of power, rough idling, or not running at all. If you want to prevent major and costly engine repair, as well as keep your vehicle a reliable means of transportation, don’t neglect regular engine service.

If you need to know more about what causes the check engine light to come on, contact our ASE Certified technicians at Auto & Fleet Mechanic for more information about engine repair and to schedule an appointment. Our auto shop proudly serves residents in Modesto, CA, and the surrounding area.

What causes the check engine light to come on? When you see that light come on, ask an engine repair expert to check out your vehicle as soon as possible.

You may be driving smoothly along when all of a sudden you see the “Check Engine” light illuminate on your instrument panel. You start to worry about what causes the check engine light to come on. This little light could be the first warning sign of engine trouble. Unless your car doesn’t run at all, head to your auto shop as soon as you can for a diagnostic test. Your mechanic will hook up a specialized computer to your car to “read” what is happening under the hood. Potential problems can be diagnosed and fixed while they are small issues, before they turn into major engine repair.

There are several issues that can cause the check engine light to come on:

  1. Damaged Gas Cap – If the gas cap is loose or cracked, fuel vapors leak out and can throw the whole fuel system off.
  2. Faulty Oxygen Sensor – If the oxygen sensor fails, it cannot provide the right data to the car’s computer to properly monitor the unburned oxygen from the exhaust and how much fuel should be burned.
  3. Failing Catalytic Convertor – If the catalytic convertor fails, it can’t do its job of reducing exhaust gases (by converting carbon monoxide and other harmful materials into harmless emissions).
  4. Faulty Mass Airflow Sensor – The mass airflow sensor tells the car's computer to add the proper amount of fuel based on the air coming through to the engine. If it becomes clogged or is not installed properly, it will fail.
  5. Dirty Spark Plugs and Wires – The spark plug seals the combustion chamber and provides a gap for a spark to jump across and initiates combustion in your engine. You will start to notice misfiring when they go bad.

Any of the problems listed above can result in reduced fuel efficiency, an increase in toxic fumes from your exhaust, loss of power, rough idling, or not running at all. If you want to prevent major and costly engine repair, as well as keep your vehicle a reliable means of transportation, don’t neglect regular engine service.

If you need to know more about what causes the check engine light to come on, contact our ASE Certified technicians at Auto & Fleet Mechanic for more information about engine repair and to schedule an appointment. Our auto shop proudly serves residents in Modesto, CA, and the surrounding area.

Judi Harvey
Auto & Fleet MechanicModesto Auto Repair

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5160 Pentecost Drive #C, Modesto, CA 95356209-543-7575info@autoandfleetmechanic.com
Mon:07:30am - 05:30pm
Tue:07:30am - 05:30pm
Wed:07:30am - 05:30pm
Thu:07:30am - 05:30pm
Fri:07:30am - 05:00pm
Sat:Closed
Sun:Closed
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