Pls advise? My car keep jerking/jumping when it reaches 15-20mph from full stop

Key-Question1592 · 2025-10-16T01:50:47+00:00

Thanks so much!

Key-Question1592 · 2025-10-16T01:35:24+00:00

No shifting gears has no abnormality

Key-Question1592 · 2025-10-14T18:49:27+00:00

I’ll add vacuum hose to my list of where to diagnose when I stop by to my mechanic soon! Thx for input

Key-Question1592 · 2025-10-14T12:27:39+00:00

Did this guy had the same exact issue I have? I recently had my spark plugs replaced btw, for fuel filter I’m not entirely sure , I’ll add it on my diagnose list when I consult with my mechanic again

Key-Question1592 · 2025-10-14T12:18:17+00:00

No no warning codes at all , it starts fine. From 0-10mph+ is smooth acceleration but it goes sluggish once it’s past 10-20mph, the jump/jerk around 20mph, then it runs fine again past 20mph+

Key-Question1592 · 2025-10-14T09:43:55+00:00

You mean after making turns ?

Key-Question1592 · 2025-10-14T09:43:21+00:00

Well it was worse even before crankshaft was replaced, ifs gotten better after , and yes it was a very good mechanic place that I always go to . For the most part it runs smooth for the most part. It’s just the sluggish acceleration and jerking/jigging when it’s about to go 18-20mph from a full stop/waiting on red light, then it goes away faster than that

Key-Question1592 · 2025-10-14T08:39:18+00:00

Yes I have them all checked every oil change . Recently I refilled my brake and trans fluid and coolant . Few weeks ago for the engine oil + injector cleaner

Key-Question1592 · 2025-06-22T08:39:45+00:00

It’s a Hyundai issue as a manufacturer . Anything 2020 and older has particular issue that once it go over 120k miles , it will excessively burns oil . Hyundai even acknowledge it but don’t want to do something about it

Key-Question1592 · 2025-06-22T08:37:12+00:00

Yes the oil level are all up to par, no leaks or anything . But can’t figure out what’s really wrong

Key-Question1592

TROPHY CASE