2019 Hyundai Elantra: Cold weather piston slap
Common wear/failure (not a recall)
Symptoms
Owners of the 2019 Elantra report: cold weather piston slap. CarComplaints.com lists 1 owner complaints, average mileage 8,000 miles.
NHTSA has 141 owner complaints for the 2019 Elantra in this area. Examples:
- NHTSA complaint ODI #11771813 (filed 10/17/2026): “It was no incident. car died and mechanic says engine is locked. got oils changed everytime in a timely manner and this is a fairly new car. please help…”
- NHTSA complaint ODI #11767110 (filed 09/26/2026): “I am reporting that there is not a recall but a factor warranty from the manufacture. stating that the o ring in the 2019 hyundai elantra was not properly tempered. which will cause the car to stall, rod bearing to break, and cause the car to set on fire. my r…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: none clearly reported. Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range: get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .