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So you come out to start your car one morning and the Check Engine light on the dashboard comes on…and doesn’t go back off again. You can’t really notice any difference in the way the car runs and drives, but it’s on anyway.
What does it mean?
Since the late 80s, most engine functions have been controlled by a central drivetrain computer. This includes emissions controls, fuel metering and delivery, ignition timing, shift points and many other elements of drivability and performance. The drivetrain computer relies on information from a chain of sensors that monitor exhaust composition, camshaft position, throttle position and many other factors.
The voltage readings from any of these sensors are supposed to fall within a certain range. When these readings are out of normal parameters, the drivetrain computer stores a trouble code and illuminates the Check Engine light (also known as a Malfunction Indicator Lamp or MIL). Some problems on some makes may take several failure cycles before the MIL will illuminate.
The trouble code could originate from something as minor as a loose gas cap or a loose or corroded wire to a sensor. On the other hand, it could mean something considerably more serious.
The trouble code can be accessed by a technician using a code reader or scanner device, which hooks up to a standardized connector usually found under the dashboard. The code (or codes) can then be interpreted to diagnose the problem. It takes an experienced technician, however, to know why a given code occurred in the first place and find the problem and repair it.
So for you, the driver, what should you do when the MIL is illuminated?
You should, of course, get your vehicle to a shop for a proper diagnosis as soon as you can. If you notice problems like rough running, poor idle, transmission roughness, smoke or other real driveability problems, don’t put it off! The good news is that the whole system of onboard diagnostics has made it easier for a technician to track down a problem and address it, taking a lot of the guesswork out of the process.
Tire installment package required for online only. Goodyear Credit Card offers are subject to credit approval. Get up to $100 back by mail-in or online on a qualifying purchase of a set of 4 select Goodyear tires with any form of payment method; plus get an added bonus of up to $100 more when the purchase is made on Goodyear Credit Card from 10/1/2024 to 12/31/2024.
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Limit one (1) rebate per qualifying tire purchase. Limit four (4) rebates per household, per promotion. Tire rebate offers are on a set of four (4) tires purchased from 10/1/2024 to 12/31/2024. If your vehicle requires six tires, rebates are available on a prorated basis for the two additional tires. The prorated rebate amount, per additional tire, is 25% of the rebate amount listed above. The minimum purchase is a set of four tires, and the maximum purchase is six tires per invoice. Complete purchase must be made on the Goodyear Credit Card to receive maximum rebate offer. Offers available only at authorized participating U.S. Goodyear retailers and websites. Offer valid only for U.S. residents who are individual consumers with mailing addresses in the U.S. and U.S. territories. Offers valid for consumer accounts in good standing. Not valid on previous purchases. Cannot be combined with other Goodyear tire rebate offers. Base portion of rebate offered by Goodyear, and bonus portion of rebate offered by Citibank, N.A. The Goodyear Credit Card is issued by Citibank, N.A.
Completed rebate forms must be postmarked or submitted online no later than 1/31/2025. Invoice must have eligible tire name and proof of purchase on Goodyear Credit Card (when applicable) clearly indicated. Online purchases must include copy of the online purchase invoice and the installation invoice from authorized Goodyear retailer. Allow 6 to 8 weeks for Visa Prepaid Card/Virtual Card delivery. Goodyear reserves the right to substitute a check of equal value in lieu of a Visa Prepaid Card at its discretion. For additional questions, or to check the status of your rebate, you may visit www.Goodyear.com/rebates or call the Goodyear Rebate Customer Service at 1-888-683-8724 Monday to Friday between the hours of 9 a.m. – 9 p.m. ET and 9 a.m. – 5 p.m. ET on Saturday. Fraudulent submissions will not be honored and may be prosecuted. Sponsor is not responsible for noncomplying rebate submissions or for lost, late, illegible, postage-due or undeliverable mail. Noncomplying rebate submissions will not be honored, acknowledged or returned. Void where taxed, restricted or prohibited by law. All decisions made by Goodyear (or its authorized representatives) relating to the validity of any submissions are final and binding. This promotion is subject to all federal, state, and local laws and regulations.
Rebate paid in the form of a Goodyear Visa Prepaid Card or Virtual Card. Prepaid Card/Virtual Card is issued by Pathward, N.A., Member FDIC, pursuant to a license from Visa U.S.A. Inc. No cash access or recurring payments. Prepaid Card can be used everywhere Visa debit cards are accepted. Virtual Card can be used everywhere Visa debit cards are accepted online or for phone/mail orders. Prepaid Card/Virtual Card valid for up to 6 months; unused funds will forfeit after the valid thru date. Prepaid Card terms and conditions apply. Pathward does not endorse or sponsor the Goodyear Credit Card offer. Retain copies of the materials you submit. Additional terms and conditions apply. Ask participating retailer for complete details and rebate form.
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