Why Is My Check Engine Light On?

The Check Engine Light strikes fear into the hearts of many in Southwestern Michigan and is totally ignored by just as many.
Let’s get the urgency issues out of the way first. If your minivan’s check engine light is flashing, that means that something is wrong that could cause severe engine damage. Naturally, drivers should get that taken care of right away at Pro Muffler & Brake Shop Inc.

If your check engine light is flashing, you shouldn’t drive at Benton Harbor highway speeds, tow or haul heavy loads.

If the light is glowing steadily, Benton Harbor auto owners should keep an eye on it for a day or two. If the light doesn’t go off, schedule an appointment with Pro Muffler & Brake Shop Inc to get it checked out.

An explanation on how the Check Engine Light works may be informative. Most of your minivan engine functions are controlled by a computer, not surprisingly, called an engine control computer. The computer is able to adjust many engine parameters for environmental conditions, engine condition and even the way you drive.

In order to make these adjustments, the computer relies on a network of sensors to provide data. The computer knows the proper operating range for each sensor. When a sensor reading is out of range the computer runs some tests and may turn on the Check Engine Light.

A simple example is a loose or missing gas cap. This may cause one of the sensors to read out of range. The minivan’s computer doesn’t know if it’s a serious condition that caused the reading or just a loose gas cap, so it stores a trouble code and turns on the Check Engine Light.

Now when you tighten up the gas cap the sensor readings will be in the correct range. The computer will keep checking on the report for a day or two. Since a bad reading didn’t come up again, it turns off the Check Engine Light. The computer will also try to make adjustments to compensate for some readings. If it can do so, it’ll then turn off the Check Engine Light. If the problem can’t be resolved then the light will remain on and you should get your minivan looked at Pro Muffler & Brake Shop Inc.

Your Pro Muffler & Brake Shop Inc technician will plug a scanner into the on-board diagnostic port and read the trouble code stored in the computer. The trouble code will give the Pro Muffler & Brake Shop Inc technician a starting place as he diagnoses the cause of the problem.

At Pro Muffler & Brake Shop Inc in Benton Harbor MI (49022) we install quality NAPA replacement parts. Give us a call at 269.926.2006.

Dear Kevin & Rich,We finally made it to the West Coast. We’re in Northern California headed down to San Fran. We picked up my PT Cruiser and it’s holding up well… So far. I don’t want to jinx myself. Hope all is well in Michigan. Perhaps we’ll meet again. Thanks for all your kindness!Sincerely, Beth & Jerod
Thank you Pro Muffler & Brake Shop! If I have a problem with my brakes or my muffler again, I will come to you! Many thanks to you & staff. My car runs so much better and because of you guys I have confidence in driving my car. Customer of '97 Honda Civic
Kevin & Pro Muffler guys, “Many thanks for your prompt, courteous & special service today!Anita
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