WHY DOES MY CAR SHAKE AT HIGHWAY SPEEDS?
A vehicle that is smooth around town and starts shaking at 55 to 70 mph is one of the most common complaints that rolls through our door, and the good news is the usual causes are findable and fixable. Here is what that shake tends to be, in rough order of likelihood.
01 Wheel balance
The most common cause by a wide margin. A wheel that is even slightly out of balance is fine at 30 mph and becomes a steering-wheel shimmy at highway speed, because the imbalance spins many times per second. Balance drifts over time as tread wears and wheel weights loosen or fall off. This is a quick, inexpensive fix.
02 A bent wheel
Texas potholes earn their reputation. A bend you can barely see can produce a vibration you definitely feel, and it often shows up right after hitting something. A shop can spot it in seconds with the wheel spinning on the balancer.
03 Uneven or cupped tire wear
Tires that have worn unevenly, especially scalloped "cupping" along the edge, shake and often hum. At that point the worn tire is the symptom and something else, usually shocks, balance or alignment history, is the cause. Fixing only the tire invites the same wear on the new one.
04 Internal tire damage
A separated belt or a bubble in the sidewall can cause a shake that changes character with speed. This is the one on this list that is genuinely dangerous, because a compromised tire can fail suddenly at exactly the speeds where it shakes. If the vibration appeared abruptly, get it looked at promptly rather than driving on it for a month.
05 Worn suspension parts
Tie rods, ball joints and wheel bearings with play in them let the wheel move in ways it should not, which reads as vibration, wander, or clunks over bumps. These also ruin new tires quickly, so they are worth ruling out while the vehicle is on the rack.
Several different problems can cause this symptom. Schedule an inspection so the vehicle can be tested before additional parts are damaged.
Talk to a human about it
No phone tree, no upsell script. Call the shop, tell us what the vehicle is doing, and we will tell you straight what it needs. Walk-ins welcome at 2130 Jacksboro Hwy.
Call (817) 525-5005 Get directionsFAQ Quick answers
Why does it shake only at certain speeds?
Imbalance and bends are rotational: their force grows with wheel speed and often resonates in a specific band, commonly 55 to 70 mph, then smooths slightly above it.
The shake started right after I got new tires. Why?
Most likely a balance issue or a wheel not seated cleanly, both quick fixes under workmanship. Go back to whoever installed them. If that was us, come straight back, we will make it right.
Is it safe to drive with a highway shake?
A mild balance shimmy is not an emergency, but a sudden or worsening shake can be internal tire damage, which is. Since you cannot tell the two apart from the driver's seat, get it inspected before a long highway run.