Suspension and steering repair at your location in Dallas-Fort Worth

Reading a clunk: ball joints, sway bar links, bushings and tie rods

Worn front-end parts often make noise, and the noises overlap, which is why a hands-on inspection beats guessing from a description. Moog, a suspension parts maker, says the first sign of a worn ball joint is usually a faint, intermittent clunk from one corner, more noticeable over a bump or dip or in a corner. For sway bar links it lists a metallic clunk or knock over bumps or at higher speeds, and says the symptoms can match those of other failing parts.

For a worn control arm, Moog says the front-end clunk over bumps is typically the bushing hitting between the frame and the control arm, and it can happen while accelerating, decelerating or steering. A knock from the front when turning at low speed is on Moog's list for worn tie rods.

Moog's ball joint page is blunt about the risk: severe wear can let the stud separate from the housing, resulting in immediate loss of control of the vehicle.

Torn CV boots and the click on a tight turn

Moog describes a CV axle as the shaft that carries power from the transmission to a wheel while the wheel moves over bumps and steers. An inner joint connects to the transmission, an outer joint to the wheel, and each sits in a grease-filled boot. A ruptured boot lets grease out and lets water and debris in, which Moog calls a common cause of axle failure.

Moog ties a click or pop in turns, most noticeable in sharp low-speed turns, to the outer joint, and a clunk when accelerating or decelerating to the inner joint. 1A Auto adds that a leaking boot can fling grease onto nearby tie rods, control arms and ball joints.

A hum that changes when you steer: wheel bearings

GMB, a hub and bearing manufacturer, describes bearing noise as growling or humming that is especially noticeable as speed increases, or a grinding noise from the wheel area. Its quick test: turn the wheel slightly left or right while driving, and if the noise gets louder or changes pitch, it is likely a wheel bearing. That is a technician's test, so try it only on an empty, straight road with a gentle steering input, and treat it as a hint, not a diagnosis.

A tire retailer's blog post citing Timken and SKF says a click on a sharp turn can point to excessive bearing play, though it can just as easily be a worn outer CV joint. It also explains that some bearings are sealed units that bolt to the steering knuckle, while others are pressed into the knuckle and need a shop press with the right adapters to remove.

Split asphalt, potholes and reporting one in Dallas or Fort Worth

A Texas Tribune report from August 2011, during a nine-month drought, said clay soil in cities including Houston and Fort Worth was drying up and splitting asphalt roads, and reported more than 200 Fort Worth water main breaks from shifting soil that July. That was one drought summer, not every year.

AAA says a pothole starts when moisture collects in cracked pavement and, as temperatures fluctuate, expands and contracts through freezing and thawing until the weight of passing cars finishes the job. It also says a hard hit can knock the wheels out of alignment, affect steering, and bend or even break suspension parts. Moog's pages on control arms, tie rods and sway bar links each name potholes among the causes of damage.

If you cannot avoid one, AAA says to reduce your speed safely and check the rearview mirror before braking abruptly, and it warns that a puddle may be a deep pothole filled with water. Dallas's street services page lists Pothole Repair Routine among online requests and Pot hole - Hazardous among those to phone in to 311; Fort Worth's MyFW app, per a January 2022 city news post, takes potholes under 3 feet and cave-ins over 3 feet. Check each city's own pages for current steps.

Toe, caster and why new struts call for an alignment

Monroe, a shock and strut maker, recommends an alignment anytime struts or other steering and suspension components are replaced, with a few exceptions. It defines toe as the angle at which the tires point in or out viewed from above, and caster as the forward or backward angle of the steering axis. A toe setting that is significantly off can wear tires quickly, Monroe says, and a wrong caster setting can make it hard to keep a straight course.

An equipment seller's guide describes an alignment setup: wheel clamps holding sensors or cameras, turntables or slip plates, a steering lock, a brake pedal depressor, and a lift or ramp. Springs matter here too: Monroe says improper ride height can affect alignment. For worn coil springs it lists worn, smashed or missing jounce bumpers, rust or corrosion, kinks and excessive sagging (especially when loaded) as warning signs, and notes that a vehicle with acceptable ride height at rest may still bottom out while moving.

Power steering leaks, and jobs that need shop equipment

Moog's European support site says leaking power steering fluid typically smells like burning oil and is usually red or pink; the rack itself is lubricated with grease, so the fluid comes from the power steering system. Most leaks are solved by replacing the whole rack because the seals are hard to service, it says, and stop-leak products are only temporary. It adds that with a jack, stands or a ramp the hoses, connections and seals can be checked directly, and that a leak can make steering heavy and inconsistent until power assist is lost.

Tim says up front if a job truly needs a lift or shop machinery; a pressed-in wheel bearing and a full alignment, both described above, are examples of work that can need one. If a repair turns up more damage, you are shown it and asked to approve before anything else is done.