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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.
The GOODYEAR FALL PROMOTION EVENT is a manufacturer’s online rebate. This is a consumer tire rebate event for select Goodyear tires. To qualify for this event, you must purchase your eligible tires between September 9, 2024 and the expiry date of December 31, 2024. One (1) rebate form per sales receipt/invoice. Limit one (1) online rebate per qualifying purchase, per visit. Limit four (4) rebates per individual consumer, per promotion period. Federal and provincial taxes are calculated on the selling price before the rebate. Minimum purchase of a set of four (4) tires is required to receive the full rebate amount. Rebates are also available per tire on a prorated basis with a minimum purchase of four (4) tires and a maximum purchase of six (6) tires per sales receipt/invoice. The consumer must submit the rebate form online along with a copy of the sales receipt/ invoice on or before January 31, 2025. Offer is only open to residents of Canada and is only valid for tire purchases from a participating Canadian retailer that operates a retail location in Canada. This rebate offer cannot be combined with any other Goodyear rebate offer. This is a consumer rebate that also applies to business-to-business purchases, excluding tires sold to national accounts, government accounts, P&R accounts, secondary supply points, other retailers or any other delivery for the account of Goodyear. All sales receipts/invoices submitted must include detailed product and customer sold-to information to be eligible for rebates. The participating retailer is solely responsible for determining the selling price of the tires without direction from Goodyear. Visit goodyear.ca or see a participating retailer for more details.
Aditional terms and conditions: Goodyear reserves the right to substitute a cheque of equal value in lieu of a Goodyear Prepaid Mastercard® or Virtual Account at its discretion. Fraudulent submissions will not be honoured and may be prosecuted. Goodyear is not responsible for non-complying rebate submissions. Non-complying rebate submissions will not be honoured, 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, provincial, and local laws and regulations. Retain copies of the materials you submit.
Tire rebate will be issued in the form of one (1) Goodyear Mastercard Prepaid Card or Virtual Account. Card/Virtual Account is issued by Peoples Trust Company under licence from Mastercard International. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated. No cash access or recurring payments. Card can be used where Mastercard is accepted. Virtual Account can be used online or for phone/mail orders where Mastercard is accepted. Card/Virtual Account valid for up to six (6) months; unused funds will be forfeited after the valid thru date. Card terms and conditions apply.
2Service rebate: Offer valid with a minimum qualifying service addition. Minimum purchase of $150 required to get $50 rebate on qualifying service, including tire installation, parts and labour. Qualifying service purchase must be made with the purchase of a set of four (4) qualifying Goodyear tires from September 9, 2024 to the expiry date of December 31, 2024 and only at participating Canadian Goodyear Tire & Service Network retailers. Offer is only open to residents of Canada with mailing addresses in Canada. Tire purchase, shop supplies, disposal fees and taxes are excluded from this offer. Cannot be combined with other Goodyear service offers.
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