BrakesDiscussionCommunity Starter

Anyone else: New pads squeal more than the old ones

ColdStartBuilder79Community StarterApr 27, 20262023 Hyundai Ioniq 5 LimitedBay Area
I replaced pads and rotors and now the brakes squeal at low speed even though stopping performance is good. Hardware was cleaned and lubricated. Is some noise normal during bedding or should I pull everything apart again? If I fix it I'll come back and update the thread.
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38 replies

QuietGeek71Community StarterCommunity StarterApr 27, 2026permalink
I'd want a measurement, not a hunch. Loaded-suspension checks on the 2023 Hyundai Ioniq 5 catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. This is from a 2023 Hyundai Ioniq 5 in Bay Area. When does it actually happen? I'd rather pay for diagnosis than a second guess-repair.
TowBuilder45Community StarterCommunity StarterApr 27, 2026permalink
Intermittent stuff lies if you only catch it once. Move a coil or plug on the 2023 Hyundai Ioniq 5 if it's cylinder-specific and see whether the code follows. If the cheap test changes it, stop and reassess. On “new pads squeal more than the old,” that was the fork that mattered for me. A shop burned me once by skipping that step. Next check is the cheap one I can do in a driveway.
TowBuilder45Community StarterCommunity StarterApr 27, 2026permalink
Start with the test that can prove you wrong. Loaded-suspension checks on the 2023 Hyundai Ioniq 5 catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. A shop burned me once by skipping that step. Not interested in a five-hour wait for a shrug.
EVNerd40Community StarterCommunity StarterApr 27, 2026permalink
This is usually cheaper to test than to guess. Loaded-suspension checks on the 2023 Hyundai Ioniq 5 catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. Did the worksheet show tax yet? I'll update if anything new shows up.
SmoothWeekend20Community StarterCommunity StarterApr 27, 2026permalink
I wouldn't throw parts yet. Capture voltage while the 2023 Hyundai Ioniq 5 is actually failing — after it restarts you've lost the clue. Save the big job until that test fails. Keep sale price, fees, and rate as three different conversations. No warning lights, which is why I'm documenting it.
QuietGeek71Community StarterCommunity StarterApr 28, 2026permalink
Yes, with one caveat: Swap the cheap/easy piece first on the 2023 Hyundai Ioniq 5 and see if the fault moves. That's the branch I'd chase this week. Did the worksheet show tax yet? Heat soak after errands is the other window.
ColdStartDad25Community StarterCommunity StarterApr 27, 2026permalink
If it were in my driveway, move a coil or plug on the 2023 Hyundai Ioniq 5 if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. Any freeze-frame data saved? I'd sleep better after that step, even if it finds nothing. Only after sitting overnight so far.
TowBuilder45Community StarterCommunity StarterApr 27, 2026permalink
This is usually cheaper to test than to guess. Get a real battery/charging test on the 2023 Hyundai Ioniq 5, not just resting voltage, before blaming a module. Save the big job until that test fails. Learned this the expensive way on a previous car. That's coming from doing this as an owner, not a shop. Only after sitting overnight so far.
ColdStartBuilder79Community StarterCommunity StarterApr 27, 2026permalink
It did new pads squeal more than the old twice this week, both times after sitting. No change in mileage feel. Wrote this up on my lunch break.
RoadMiles27Community StarterCommunity StarterApr 28, 2026permalink
I hear you, though I'd still want a second check. Move a coil or plug on the 2023 Hyundai Ioniq 5 if it's cylinder-specific and see whether the code follows. If the cheap test changes it, stop and reassess. On “new pads squeal more than the old,” that was the fork that mattered for me. Just my two cents from doing this recently. This is the filter I use when the thread starts repeating itself. I'm keeping receipts and dates in one folder.
ColdStartDad25Community StarterCommunity StarterApr 28, 2026permalink
Not convinced that's the whole story. Write temp, speed, and in-gear vs coast when the 2023 Hyundai Ioniq 5 does it — then decide on parts. If the cheap test changes it, stop and reassess. Did the worksheet show tax yet? I'd rather pay for diagnosis than a second guess-repair.
MileageCamperCommunity StarterCommunity StarterApr 27, 2026permalink
Log the conditions before you spend. Loaded-suspension checks on the 2023 Hyundai Ioniq 5 catch play that a wheels-hanging inspection misses. Don't erase codes until someone who can help has seen them. On “new pads squeal more than the old,” that was the fork that mattered for me. Just my two cents from doing this recently. If this is nothing, great. I want that in data.
EVNerd40Community StarterCommunity StarterApr 27, 2026permalink
Ask what changed right before it started. Capture voltage while the 2023 Hyundai Ioniq 5 is actually failing — after it restarts you've lost the clue. Don't erase codes until someone who can help has seen them. This is from a 2023 Hyundai Ioniq 5 in Bay Area. Was this after sitting overnight? I keep a notes app thread for this now.
V8MechanicishCommunity StarterCommunity StarterApr 27, 2026permalink
Log the conditions before you spend. Write temp, speed, and in-gear vs coast when the 2023 Hyundai Ioniq 5 does it — then decide on parts. That's the branch I'd chase this week. On “new pads squeal more than the old,” that was the fork that mattered for me. Stop there until you know. I'm in no rush to be a hero on it.
QuietGeek71Community StarterCommunity StarterApr 28, 2026permalink
This is usually cheaper to test than to guess. Loaded-suspension checks on the 2023 Hyundai Ioniq 5 catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. Have you gotten a second quote in writing? Might be overthinking it, but I'd rather overthink than overspend.
ColdStartBuilder79Community StarterCommunity StarterApr 29, 2026permalink
It did new pads squeal more than the old twice this week, both times after sitting. No change in mileage feel. If it repeats twice more I'll book time.
RoadMiles27Community StarterCommunity StarterApr 28, 2026permalink
Intermittent stuff lies if you only catch it once. Capture voltage while the 2023 Hyundai Ioniq 5 is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. On “new pads squeal more than the old,” that was the fork that mattered for me. Not gospel, but it saved me a headache. No warning lights, which is why I'm documenting it.
EVNerd40Community StarterCommunity StarterApr 28, 2026permalink
Start with the test that can prove you wrong. Write temp, speed, and in-gear vs coast when the 2023 Hyundai Ioniq 5 does it — then decide on parts. Don't erase codes until someone who can help has seen them. Was this after sitting overnight? Worth doing even if the car feels fine right now. I refuse to clear codes until someone else sees them.
RoadMiles27Community StarterCommunity StarterApr 29, 2026permalink
I hear you, though I'd still want a second check. Capture voltage while the 2023 Hyundai Ioniq 5 is actually failing — after it restarts you've lost the clue. Don't erase codes until someone who can help has seen them. On “new pads squeal more than the old,” that was the fork that mattered for me. Just my two cents from doing this recently. Doing the boring step first on purpose.
EuroGarage71Community StarterCommunity StarterApr 28, 2026permalink
Start with the test that can prove you wrong. Capture voltage while the 2023 Hyundai Ioniq 5 is actually failing — after it restarts you've lost the clue. Don't erase codes until someone who can help has seen them. If you share a photo of the worksheet, easier to sanity-check. This is me being the wet blanket on purpose.
EuroGarage71Community StarterCommunity StarterApr 28, 2026permalink
Quick add on that: If a shop can't duplicate it on the 2023 Hyundai Ioniq 5, bring a video plus freeze-frame data, not just a story. You'll know quickly if you're on the wrong tree. Happy to compare notes if your setup is different. Cold start is when I can actually reproduce it.
EuroGarage71Community StarterCommunity StarterApr 29, 2026permalink
I hear you, though I'd still want a second check. Swap the cheap/easy piece first on the 2023 Hyundai Ioniq 5 and see if the fault moves. If the cheap test changes it, stop and reassess. If you share a photo of the worksheet, easier to sanity-check. Only after sitting overnight so far.
ColdStartGalCommunity StarterCommunity StarterApr 29, 2026permalink
Yes, with one caveat: Capture voltage while the 2023 Hyundai Ioniq 5 is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. On “new pads squeal more than the old,” that was the fork that mattered for me. Just my two cents from doing this recently. This is the filter I use when the thread starts repeating itself. If that fails I'll eat the diagnostic fee.
ColdStartBuilder79Community StarterCommunity StarterApr 28, 2026permalink
Cleared nothing. I want service to see the alert on the 2023 Hyundai Ioniq 5 first. I'm in no rush to be a hero on it.
ColdStartBuilder79Community StarterCommunity StarterApr 28, 2026permalink
Tried a second charger / second scan and the story on the 2023 Hyundai Ioniq 5 didn't change. I'll update if anything new shows up.
ColdStartBuilder79Community StarterCommunity StarterApr 28, 2026permalink
Tried a second charger / second scan and the story on the 2023 Hyundai Ioniq 5 didn't change. Checking again after work.
RoadMiles27Community StarterCommunity StarterApr 28, 2026permalink
Ask what changed right before it started. If a shop can't duplicate it on the 2023 Hyundai Ioniq 5, bring a video plus freeze-frame data, not just a story. Save the big job until that test fails. Just my two cents from doing this recently. I keep a notes app thread for this now.
MileageCamperCommunity StarterCommunity StarterApr 28, 2026permalink
I'd want a measurement, not a hunch. Swap the cheap/easy piece first on the 2023 Hyundai Ioniq 5 and see if the fault moves. That's the branch I'd chase this week. Not gospel, but it saved me a headache. Heat soak after errands is the other window.
ColdStartBuilder79Community StarterCommunity StarterApr 28, 2026permalink
It did new pads squeal more than the old twice this week, both times after sitting. No change in mileage feel. Next check is the cheap one I can do in a driveway.
QuietGeek71Community StarterCommunity StarterApr 28, 2026permalink
Ask what changed right before it started. Move a coil or plug on the 2023 Hyundai Ioniq 5 if it's cylinder-specific and see whether the code follows. Save the big job until that test fails. When does it actually happen? Might be overthinking it, but I'd rather overthink than overspend.
V8MechanicishCommunity StarterCommunity StarterApr 28, 2026permalink
If it were in my driveway, get a real battery/charging test on the 2023 Hyundai Ioniq 5, not just resting voltage, before blaming a module. That's the branch I'd chase this week. Stop there until you know. Not trying to scare you — just skip the expensive first guess. Video is ugly but it shows the hesitation.
ColdStartBuilder79Community StarterCommunity StarterApr 28, 2026permalink
I went back under the 2023 Hyundai Ioniq 5 and it only happens after a heat soak, not on a cold start. No warning lights, which is why I'm documenting it.
ColdStartBuilder79Community StarterCommunity StarterApr 28, 2026permalink
It did new pads squeal more than the old twice this week, both times after sitting. No change in mileage feel. Only after sitting overnight so far.
EuroGarage71Community StarterCommunity StarterApr 28, 2026permalink
Log the conditions before you spend. Loaded-suspension checks on the 2023 Hyundai Ioniq 5 catch play that a wheels-hanging inspection misses. If the cheap test changes it, stop and reassess. On “new pads squeal more than the old,” that was the fork that mattered for me. Happy to compare notes if your setup is different. Next check is the cheap one I can do in a driveway.
QuietGeek71Community StarterCommunity StarterApr 28, 2026permalink
I wouldn't throw parts yet. Get a real battery/charging test on the 2023 Hyundai Ioniq 5, not just resting voltage, before blaming a module. Don't erase codes until someone who can help has seen them. This is from a 2023 Hyundai Ioniq 5 in Bay Area. When does it actually happen? I keep a notes app thread for this now.
RoadMiles27Community StarterCommunity StarterApr 28, 2026permalink
I wouldn't throw parts yet. Get a real battery/charging test on the 2023 Hyundai Ioniq 5, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. Just my two cents from doing this recently. Your commute and mine probably aren't the same, but the test still applies. Not driving it hard until I know more.
ColdStartDad25Community StarterCommunity StarterApr 29, 2026permalink
I hear you, though I'd still want a second check. Get a real battery/charging test on the 2023 Hyundai Ioniq 5, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. Have you gotten a second quote in writing? Happens in gear, not in park, for what that's worth.
MileageCamperCommunity StarterCommunity StarterApr 30, 2026permalink
Asking because it changes the advice: Move a coil or plug on the 2023 Hyundai Ioniq 5 if it's cylinder-specific and see whether the code follows. Don't erase codes until someone who can help has seen them. This is from a 2023 Hyundai Ioniq 5 in Bay Area. Take it or leave it — that's what I'd do. Worth doing even if the car feels fine right now. Only after sitting overnight so far.
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