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Do you know why,when I am on the highway my steering wheel starts to shake when my speed gets up to 70? And also when I am on the highway & getting off my exit I step on the brakes & the whole front end shakes, however it does not do it all the time, do you know what could be wrong? Thank You Marie

Answers from the Automotive Experts

Amanda J. Pierce, MBA Marie We may be looking at two different causes of your Concern 1.) Your steering wheel shake at highway speeds may be due to your tires needing balance and rotation check for uneven tread wear also. 2.) The shaking when breaking may be due to your brakes. I recommend a 4-wheel brake inspection You possible may need new brake pads and/or rotor resurfacing. Your rotors can wear uneven as to when your pads make contact to stop you feel the reverberations in the steering wheel. Hope this helps! Thank You For writing into AskPatty. A.J. Pierce

Amy Mattinat, Owner and Author at Auto Craftsmen Ltd Hi Marie, You need to take your Outback to a repair shop for a diagnosis... but I will speculate of what it could be. When the steering wheel shakes at highway speeds, it could be your tires are out of balance, the tires are worn out, or even that you have mud built up on the inside of the rim of the wheels. When you step on the brakes and the whole front end shakes it could be that the rotors are warped and or the brake pads are worn out. Again - this is just me guessing. You really need to take it to a shop and have a real diagnosis.

Barb Petrey, President - DBK Enterprises Inc at Jiffy Lube I would start with either tire balancing, tire alignment or check for wear on tires. If one has more wear than the others you may need to replace the tire or tires.

Judy Curry, Co-Founder and Vice President of Marketing at Currys Auto Service Marie, Seems that you have a tire balance issue or a faulty tire. The shaking on the front end is probably your brake rotors. They may be warped and should be looked at. You might have to have these replaced if they can't machine it. As far as safety, the brakes should probably be looked at asap.

Julie Scroggins, Vice President, CFO at Waukegan Tire and Supply Company Inc. Marie, For the steering wheel shaking at highway speeds i would recommend checking the tire condition and balance and a qualified inspection of the suspension to make sure nothing is coming loose. Loose or worn parts cn casue irregular weat on your tires which can cause the high speed vicration in the steering. The shaking when braking is a different matter. The shop that inspects the suspensin should test drive the vehicle and do a complete inspection of the brakes including measuring the pads and rotors. A visual inspection will not suffice for this type of braking issue. Plan on dropping the vehicle at the shop as it could take some time to reproduce the problem at inspection time.

Kerri Papajohn, Marketing Director at USA Sealants, Inc. You are describing two different scenarios. The first one is caused by a wheel imbalance or out-of-round tire. The second condition is caused by the front disc brake rotors heating up and warping. This will most likely occur after repeated braking from high speeds or braking when going downhill. The rotors heat up and warp, an indication they are too thin to provide safe braking under all conditions and should be replaced.

Lori Johnson, Owner and Instructor at Ladies Start Your Engines Dear Marie, You should have the tires checked. It's possible that the wheels are out of balance or that you need an alignment. If you're feeling the front end shake when you brake, I would have them check your brake rotors to see if they are warped. Lori Johnson

Pat Fleischmann, Director of First Impressions at Community Tire Pros & Auto Repair Marie, In most cases we find that the shaking at high speeds is due to tires being unbalanced, the fix is to rebalance the tires and test drive. The shaking under braking issue is warped rotors. The fix is to machine the front rotors if there is enough “meat” left on them, if not then the rotors will need to be replaced. I hope this helps with you going forward on your repairs & to ask the right questions & concerns....

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