Mass air flow sensor drift causing rough idle and poor economy.
- Typically appears
- 80,000+ miles
- What to inspect
- Watch for hesitation and check fuel-trim data if possible.

A 2013 Toyota 4Runner is now 13 years old, so an average example has covered around 175,500 miles. An early car in the generation · most of the launch teething issues were still being worked through, so recall completion and dealer rectification history matter. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2013 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
The 2013 Toyota 4Runner is 13 years old, so an average example has covered roughly 175,500 miles. At that mileage 2 of the documented faults are already due, so check those first.
Documented onset mileage is at or below the ~176k miles an average 2013 car has covered.
Mass air flow sensor drift causing rough idle and poor economy.
Water pump seepage.
Age, electronics and build-related issues that are not mileage-driven.
Dashboard cracking / stickiness in hot climates.
Rear hatch glass/wiper and third-row seat latch wear.
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carVery — the 4.0L V6 and 5-speed automatic are known for long service lives.
Well-maintained examples routinely pass 200,000 miles; service history matters more than the number.
Mostly age-related — dashboard cracking, MAF drift and water-pump seepage.