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A strut condition inspection at Route 66 Auto Repair in Upland checks the struts that hold up your car's corners and form part of its steering. A strut combines a damper, a spring and a top mount in one assembly, so a problem in any piece shows up as noise, sag or poor handling. We test all three, photograph what is worn, and note how any repair will affect wheel alignment.
When your struts need checking
- A pop or clunk from the top of the strut when turning the wheel at parking speed
- One corner sits lower than the others
- Steering feels notchy or springs back unevenly after a turn
- Oil on the strut body or a torn dust boot
- Nose dive and body roll that has gotten worse over time
What do we check on a strut assembly?
The top mount holds a bearing that lets the strut turn with the steering. When that bearing binds, you hear a pop or feel notchiness in slow turns. We turn the wheel with the car on the ground and feel at the top of the strut. We also look at the mount rubber for cracks and separation, which lets the strut knock.
We measure ride height at each corner and compare sides, because a sagging or cracked spring changes how the car sits. The spring gets a look for breaks at the ends, which is where they usually fail. The damper gets the same leak and road test check as any shock. Finally, we note the current tire wear, because strut replacement changes camber on many vehicles, so the report tells you whether an alignment should follow.
What goes on the strut report?
- Top mount and bearing condition on each side
- Ride height at each corner
- Spring condition, including broken coil ends
- Damper leaks and road test notes
- Whether an alignment should follow repair
- Photos of broken springs, leaks or torn mounts
Our strut inspection process
Step 1: Measure ride height
Each corner is measured and compared.
Step 2: Turn and listen
We turn the wheel on the ground to check mount bearings.
Step 3: Road test
Damping, dive and roll are judged on a set route.
Step 4: Lift inspection
Springs, boots and damper seals are checked and photographed.
Step 5: Report
You get findings, photos and an estimate that notes alignment.
What's included in a strut condition inspection
Included on the work order
- 01Ride height comparison
- 02Top mount and bearing check
- 03Spring inspection for cracks and sag
- 04Damper leak check and road test
- 05Tire wear review
- 06Written report with alignment note
Which strut findings are urgent?
Need now: call
- A broken coil spring
- A top mount separating from the body
- A strut leaking oil freely
Need later: book
- Mild mount bearing noise with smooth steering
- Slightly soft damping with even ride height
How pricing and timing work
The counter states the inspection fee first. Strut repair can be quoted as individual parts or as a complete assembly with a new spring and mount. Complete assemblies usually save time. The written estimate explains which we recommend for your vehicle, lists each axle separately and includes arranging the alignment. AAA members save 10% on parts and labor, up to $75.
Read next
Worn struts lead to strut repair. A broken spring alone may point to coil spring replacement. After either job, the suspension alignment page explains how we arrange that step and road-test the car. If your vehicle has separate shocks in the rear, see the shock absorber inspection.
Frequently asked questions
Why do I need an alignment after new struts?
On many cars the strut sets the wheel's camber angle. Removing and installing it can change that setting. We arrange the alignment and road-test the result.
Can I replace just the strut mount?
Yes, if the damper and spring are fine. But the strut has to come out to replace the mount, so if the damper is also worn, doing both at once saves labor.
Is a broken spring dangerous?
A broken spring can drop that corner and, in some cases, rub the tire. We label it need-now.