A big three-row SUV that tows and hauls is tough on suspension parts. The trick is figuring out whether that noise is a $150 link or something bigger before a shop starts replacing everything with a part number. Start with what generation you have.
Know your generation
- 2018-2024 (fourth generation): four-wheel independent suspension, 3.5L EcoBoost, 10-speed automatic.
- 2025 and later (fifth generation): same basic powertrain, with a retuned suspension on the Tremor trim.
- 2007-2017 (third generation): some trucks used an air-ride rear suspension, which Ford dropped after 2013.
Clunk over bumps or in turns: the likely causes
| Symptom | Common cause | Typical cost |
|---|---|---|
| Light clunk over small bumps, worse on rough roads | Worn sway bar (stabilizer) links | $139 to $168 (2023-2024), $165 to $204 (2025-2026), RepairPal |
| Clunk at full steering lock on a 2022-2023 Timberline | Steering knuckle contacting control arm | Ford replaces both knuckles under bulletin SSM 51715/51916 |
| Clunk shifting between Reverse and Drive, or coasting down (2018-2020 2WD) | Driveline slip, covered by TSB 20-2253 | Typically warranty work on covered trucks |
| Pulling, crooked wheel, uneven tire wear | Alignment, sometimes after a pothole | $195 to $286 (2023-2026), RepairPal |
| Wandering, loose steering, grinding hum | Ball joints, tie rods or wheel bearings | Get a quote after inspection |
RepairPal recommends replacing sway bar links in pairs, and it's cheap insurance to do it that way. Links are also the classic "they replaced it and the noise is gone" repair, so start there if a shop finds play.
The Timberline full-lock clunk
If you own a 2022 or 2023 Expedition Timberline and hear a clunk when the wheel is turned all the way, you're not imagining it. Ford's SSM 51901 and the related 51715 and 51916 notices describe possible contact between the steering knuckle and the control arm at full lock. The fix is new steering knuckles on both sides (Ford part numbers NL1Z-3K185-D and NL1Z-3K186-D). Ask the dealer to look it up by VIN.
Clunk that isn't the suspension at all
On 2018-2020 two-wheel-drive Expeditions, Ford's TSB 20-2253 covers a clunk from the driveshaft area when shifting between Reverse and Drive or during coast-down. People often blame the suspension for this one. If your noise only happens on gear changes, mention this bulletin.
Rear end sagging
On older Expeditions with air-ride, a rear that sits low (especially after the truck parks overnight) usually means a leaking air spring, and a compressor that runs longer and louder than normal is a common sign. RepairPal lists air spring replacement at $805 to $913 for 2008-2013 trucks. Owners on TrueDelta report everything from a failed relay to full conversions to coil springs and shocks, which aftermarket companies sell as kits.
On a 2018 or newer truck, a sagging corner is not normal. Check for a broken coil spring, a leaking shock, or simply an overloaded rear (a heavy trailer tongue will do it).
Easy checks before the shop
- Bounce test: push down hard on each corner. More than one or two bounces points at worn shocks.
- Listen at low speed: drive slowly over a speed bump with the windows down and note which corner the sound comes from.
- Look at tire wear: feathered or inside-edge wear means alignment or worn parts.
- Note when it happens: only on gear changes (driveline), only at full lock (knuckle), or over small bumps (links).
- Check recalls: nhtsa.gov/recalls with your VIN. Several 2018-2021 trucks also have an open transmission park recall worth fixing during the same visit.
What to ask the shop
- "Can you show me the play or damage on the part you want to replace?"
- "Is there a Ford bulletin (SSM 51715/51916 or TSB 20-2253) for my VIN?"
- "Are you replacing links in pairs, and is an alignment included?"
- "Is this covered by my warranty?"
- On older air-ride trucks: "Is it the air spring, the compressor, or a leak in a line?"
Is it worth fixing?
Yes. Sway bar links, an alignment or even a pair of knuckles are small money compared with what an Expedition is worth. The only real repair-or-replace question is on high-mileage 2007-2013 trucks with failed air-ride, where the cost of OEM air parts versus a coil conversion is worth comparing. Either way, fix it before the noise turns into tire wear.
See more on the Ford Expedition repair page. Shifting problems too? Read our Expedition 10-speed and park recall guide. Prices checked October 14, 2026.
