2018 Toyota 4Runner: Engine – vibration
Common wear/failure (not a recall)
Symptoms
Owners of the 2018 4Runner report: engine – vibration. CarComplaints.com lists 1 owner complaints, average mileage 50 miles.
NHTSA has 5 owner complaints for the 2018 4Runner in this area. Examples:
- NHTSA complaint ODI #11727554 (filed 03/27/2026): “The dealership direct motor, located in manassas, virginia, sold me this car in poor condition. on sunday the 22nd, i picked up the car around 10 pm. they didn't show me any information about the car. when i picked it up, i saw that the front bumper and rear d…”
- NHTSA complaint ODI #11603235 (filed 07/18/2024): “Two transfer case seals failed at 64,000 miles. caused excessive oil to leak out of transfer case and onto the exhaust. safety was put as risk by potential full failure of transfer case which can cause loss of power at speed or leaking oil on exhaust causing a…”
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 .