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2021 Toyota Highlander — single clunk over small sharp bumps

NewCarMechanicish876Community StarterJul 7, 20262021 Toyota Highlander XLENew Jersey
This started as a small annoyance and I finally decided to track it down. There is one front-end clunk over pothole edges and driveway lips, but larger smooth bumps do not reproduce it. How would you isolate end links, strut mounts, control-arm bushings and ball joints?
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29 replies

DieselNomadCommunity StarterCommunity StarterJul 7, 2026permalink
Owner notes beat generic advice here. On the 2021 Toyota Highlander in New Jersey, I'd fix the thing you'll notice every day before chasing spec-sheet extras. That's where I'd start. On “single clunk over small sharp bumps,” that was the fork that mattered for me. Stop there until you know. Wrote this up on my lunch break.
TrackWeekend267Community StarterCommunity StarterJul 8, 2026permalink
Yes, with one caveat: A second data point from another 2021 Toyota Highlander owner helps more than a generic diagnosis. That's where I'd start. This is from a 2021 Toyota Highlander in New Jersey. That's the sequence I'd use. I'd rather be boring and correct. Might be overthinking it, but I'd rather overthink than overspend.
CanyonSellerCommunity StarterCommunity StarterJul 7, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2021 Toyota Highlander before a big repair or a big spend. Then you'll know the next fork. This is from a 2021 Toyota Highlander in New Jersey. A shop burned me once by skipping that step. I'll update if anything new shows up.
OldSchoolBuyer653Community StarterCommunity StarterJul 7, 2026permalink
Write down what you already tried. A second data point from another 2021 Toyota Highlander owner helps more than a generic diagnosis. Then you'll know the next fork. This is from a 2021 Toyota Highlander in New Jersey. I'd want a dollar figure or a measured spec, not 'should be fine.' Not trying to scare you — just skip the expensive first guess. This is the version I'd tell a friend.
DailyDetailerCommunity StarterCommunity StarterJul 7, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2021 Toyota Highlander before a big repair or a big spend. Then you'll know the next fork. Verbal 'we'll take care of it' is not a plan. I've seen both outcomes, which is why I'd test instead of assume. I'll update if anything new shows up.
TruckDadCommunity StarterCommunity StarterJul 7, 2026permalink
Write down what you already tried. A second data point from another 2021 Toyota Highlander owner helps more than a generic diagnosis. That's where I'd start. Write the result down so the next test isn't a repeat of the last one. Might be overthinking it, but I'd rather overthink than overspend.
DailyDetailerCommunity StarterCommunity StarterJul 8, 2026permalink
I hear you, though I'd still want a second check. On the 2021 Toyota Highlander in New Jersey, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “single clunk over small sharp bumps,” that was the fork that mattered for me. If they can't show the line item, I assume it's hiding. That's my plan before I call anyone.
ColdStartLearner641Community StarterCommunity StarterJul 7, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2021 Toyota Highlander, a specialist hour can be cheaper than another round of parts. That's where I'd start. This is from a 2021 Toyota Highlander in New Jersey. Did the worksheet show tax yet? That's coming from doing this as an owner, not a shop. I'm in no rush to be a hero on it.
PistonGuy576Community StarterCommunity StarterJul 8, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2021 Toyota Highlander, a specialist hour can be cheaper than another round of parts. I'd do that before spending real money. This is from a 2021 Toyota Highlander in New Jersey. Keep sale price, fees, and rate as three different conversations. If the story changes I'll post the new data.
NewCarMechanicish876Community StarterCommunity StarterJul 8, 2026permalink
Useful. I'll report back after I verify that on my 2021 Toyota Highlander. That's my plan before I call anyone.
NewCarMechanicish876Community StarterCommunity StarterJul 8, 2026permalink
Thanks — that narrowed it. I'm going to try the simpler check on the 2021 Toyota Highlander first. Doing the boring step first on purpose.
DailyDetailerCommunity StarterCommunity StarterJul 9, 2026permalink
Quick add on that: On the 2021 Toyota Highlander in New Jersey, I'd fix the thing you'll notice every day before chasing spec-sheet extras. That's where I'd start. On “single clunk over small sharp bumps,” that was the fork that mattered for me. If they can't show the line item, I assume it's hiding. That's my plan before I call anyone.
RoadCamperCommunity StarterCommunity StarterJul 8, 2026permalink
Write down what you already tried. A second data point from another 2021 Toyota Highlander owner helps more than a generic diagnosis. That's where I'd start. This is from a 2021 Toyota Highlander in New Jersey. That's the sequence I'd use. Might be overthinking it, but I'd rather overthink than overspend.
CanyonOwner864Community StarterCommunity StarterJul 9, 2026permalink
Not convinced that's the whole story. If it still isn't clear on the 2021 Toyota Highlander, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. Verbal 'we'll take care of it' is not a plan. That's coming from doing this as an owner, not a shop. If the story changes I'll post the new data.
RoadCamperCommunity StarterCommunity StarterJul 9, 2026permalink
Asking because it changes the advice: If it still isn't clear on the 2021 Toyota Highlander, a specialist hour can be cheaper than another round of parts. That's where I'd start. No need to make it theatrical. I'm keeping receipts and dates in one folder.
NewCarMechanicish876Community StarterCommunity StarterJul 10, 2026permalink
Following up on single clunk over small sharp bumps: still happening, but I have better notes now. I'll update if anything new shows up.
TrackGeek594Community StarterCommunity StarterJul 8, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2021 Toyota Highlander before a big repair or a big spend. I'd do that before spending real money. This is from a 2021 Toyota Highlander in New Jersey. Learned this the expensive way on a previous car. I'll update if anything new shows up.
DailyDetailerCommunity StarterCommunity StarterJul 8, 2026permalink
Write down what you already tried. A second data point from another 2021 Toyota Highlander owner helps more than a generic diagnosis. I'd do that before spending real money. I'd want that in writing, not as a promise. If this is nothing, great. I want that in data.
CleanGal231Community StarterCommunity StarterJul 8, 2026permalink
I hear you, though I'd still want a second check. A second data point from another 2021 Toyota Highlander owner helps more than a generic diagnosis. Then you'll know the next fork. Had a similar mess a couple years ago and that's what finally sorted it. If this is nothing, great. I want that in data.
ColdStartCommuter242Community StarterCommunity StarterJul 9, 2026permalink
That's a good start, but I wouldn't stop there. Verify the cheap/easy branch on the 2021 Toyota Highlander before a big repair or a big spend. That's where I'd start. When does it actually happen? Worth doing even if the car feels fine right now. I'll update if anything new shows up.
TruckDadCommunity StarterCommunity StarterJul 8, 2026permalink
Write down what you already tried. A second data point from another 2021 Toyota Highlander owner helps more than a generic diagnosis. Then you'll know the next fork. Time, temperature, and whether it's in gear are the notes that actually help a shop. Might be overthinking it, but I'd rather overthink than overspend.
ColdStartCommuter242Community StarterCommunity StarterJul 8, 2026permalink
Don't overfit one forum story to your car. If it still isn't clear on the 2021 Toyota Highlander, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. When does it actually happen? That's coming from doing this as an owner, not a shop. If the story changes I'll post the new data.
ColdStartCommuter242Community StarterCommunity StarterJul 8, 2026permalink
Owner notes beat generic advice here. On the 2021 Toyota Highlander in New Jersey, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “single clunk over small sharp bumps,” that was the fork that mattered for me. Was this after sitting overnight? Wrote this up on my lunch break.
NewCarMechanicish876Community StarterCommunity StarterJul 8, 2026permalink
Following up on single clunk over small sharp bumps: still happening, but I have better notes now. If the story changes I'll post the new data.
ColdStartLearner641Community StarterCommunity StarterJul 8, 2026permalink
Owner notes beat generic advice here. On the 2021 Toyota Highlander in New Jersey, I'd fix the thing you'll notice every day before chasing spec-sheet extras. That's where I'd start. On “single clunk over small sharp bumps,” that was the fork that mattered for me. Any freeze-frame data saved? That's my plan before I call anyone.
TrackGeek594Community StarterCommunity StarterJul 9, 2026permalink
I'd push back a little: Verify the cheap/easy branch on the 2021 Toyota Highlander before a big repair or a big spend. Then you'll know the next fork. This is from a 2021 Toyota Highlander in New Jersey. Had a similar mess a couple years ago and that's what finally sorted it. Doing the boring step first on purpose.
TireDriver317Community StarterCommunity StarterJul 8, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2021 Toyota Highlander before a big repair or a big spend. I'd do that before spending real money. I'd want a dollar figure or a measured spec, not 'should be fine.' Worth doing even if the car feels fine right now. I'll update if anything new shows up.
DailyDetailerCommunity StarterCommunity StarterJul 9, 2026permalink
Owner notes beat generic advice here. On the 2021 Toyota Highlander in New Jersey, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “single clunk over small sharp bumps,” that was the fork that mattered for me. Verbal 'we'll take care of it' is not a plan. That's my plan before I call anyone.
SleeperWeekendCommunity StarterCommunity StarterJul 9, 2026permalink
I'd keep this practical. Verify the cheap/easy branch on the 2021 Toyota Highlander before a big repair or a big spend. That's where I'd start. If you share a photo of the worksheet, easier to sanity-check. Doing the boring step first on purpose.
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