Engine Guides Toyota 1GR-FE 4.0 V6 Engine Guide: Specs, Problems & Reliability
The 1GR-FE is Toyota's 4.0L (3,956cc) aluminum V6 with a timing chain. It powered the 2003–2024 4Runner, 2005–2015 Tacoma, 2007–2014 FJ Cruiser and 2005–2009 Tundra V6. Early engines are single VVT-i (236–245 hp); the 2010+ 4Runner and FJ got dual VVT-i with roller rockers (258–270 hp). It is one of Toyota's most durable V6s, with 250,000+ miles common. The real known issues are an early front timing cover oil leak, occasional head gasket seepage at high mileage, and secondary air injection pump failures on later trucks.
Engines · Tacoma10 min