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Power Steering Service in Thornhill, ON

Keep your Vehicle Feeling Good as new

Your vehicle’s steering and suspension systems rely on a range of components, such as the power steering fluid, tie rod, ball joints, shocks and struts. Without proper maintenance of all those crucial parts your vehicle may not steer as well as it should or absorb the bumps on the road the way it was originally designed to.

Symptoms to look out for:

  • Noise when turning the wheel
  • Leaking struts
  • Low power steering fluid levels
  • Loose steering
  • Excessive bouncing, drifting or swaying while driving
  • Irregular tire wear

Do you believe you may be having problems with your steering or suspension?

If you notice any of these symptoms, visit Roy Foss Thornhill so one of our GM Certified Service Experts can properly diagnose your vehicle. You may be in need of power steering line/hose repair or suspension service, so Roy Foss Thornhill’s Certified Service Experts will check that all of your suspension and steering components are functioning properly and help maintain and repair them as required.


Service Specials

No-Charge Inspections - Cabin Air Filter and Engine Air Filter
Plus Available Instant Discounts on ACDelco Filters

Visit Roy Foss during August and September and receive a complimentary inspection of your Cabin and Engine Air Filter. If a replacement is required, you can receive a $5 instant discount on ACDelco cabin and engine air filters.

Offer valid from August 1, 2022 to September 30, 2022 at GM Canada Certified Service dealers. Customers who receive a no-charge filters inspection during the offer period will be eligible for an instant discount on new ACDelco cabin and engine air filters, $5 on each for a potential savings of $10. Instant discounts to be applied before applicable taxes. Customer must show proof of offer, via e-mail or, to be eligible for instant discounts. Customers applying instant discount to purchase of cabin or engine air filters must have them installed by the same dealer who completed the filters inspection. Discount can only be applied toward air filters installed on the same vehicle on which the no-charge filters inspection was completed. Offer available to retail customers only. Offer may not be combined with select Dealer specific incentives or promotions. GM Canada reserves the right to cancel, modify or amend the offer without notice. See dealer for details.

EXPIRES: 09/30/2022
Complimentary Foss Lifetime Tire Repair

Foss Life Time Tire Repair ImagePurchase a set of four (4) in-stock tires from Roy Foss and you will receive Complimentary Foss Lifetime Tire Repair!†

Complimentary Foss Lifetime Tire Repair offer is only applicable when purchasing four (4) in-stock tires from Roy Foss; rims, sensors, and installation not included. Foss Lifetime Tire Repair offer is only applicable on tire repairs for the purchased tires only and does not include rim damage or rim or tire pressure sensor replacement. Foss Lifetime Tire Repair offer is applicable on repairs involving installation of a tire plug/patch repair ONLY. It does not include tire replacement due to unrepairable tires (tread depth less than 2/32”, sidewall damage, damaged from mechanical failure, collision, off-road use, etc). Maximum claim is $49.95 before tax. Repairs must be completed at Roy Foss.

Senior's Day Every Tuesday
Receive 10% off service at Roy Foss! Contact us for details

Seniors Day Image

Senior’s Day offer applies to customers who are aged 65+ and is applicable on all vehicle repairs and maintenance items. All offers cannot be used on past purchases, cannot be redeemed for cash, and may not be combined with certain other offers. Please see Roy Foss for all offer details.


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Roy Foss Thornhill 43.802789, -79.422113.