2005 Toyota Avalon Problems: 10 Known Issues

On the 2005-2012 Toyota Avalon 2GR-FE, the engine oil supply line feeding the VVT-i actuator on the 2GR-FE V6 uses a short rubber section crimped between two steel tubes. Corrosive blow-by gases routed through the PCV system attack that rubber from the inside, and it eventually develops a pinhole that expands under full oil pressure. Owners report the oil pressure light coming on and a large fraction of the sump dumped onto the road or into the engine bay within a minute or two of driving, which can cause bearing damage if the driver keeps going. Toyota covered it under a Limited Service Campaign (phase 3 covered roughly 128,800 2007-2009 Avalons with the 2GR-FE), but the campaign expired December 31, 2021, and forum owners report the original 'upgraded' rubber replacement hose failing a second time years later.

On the 2005-2012 Toyota Avalon 2GR-FE, the 3.5L 2GR-FE V6 in 3rd and early 4th generation Avalons consumes oil at rates of 1 quart per 2,000-3,000 miles. Combined with valve cover gasket seepage that drips onto the exhaust manifold, this creates a burning oil smell. The issue worsens with age and mileage as piston ring wear progresses.

On the 2005-2012 Toyota Avalon 2GR-FE, the 2GR-FE front timing chain cover is sealed to the block with FIPG (formed-in-place gasket) sealant rather than a gasket. On high-mileage XX30 Avalons the sealant shrinks and hardens, and oil weeps from the cover seam - typically first visible at the lower right of the engine, running down the back of the block and often mistaken for a rear main seal, power steering, or valve cover leak. The same sealant path includes the camshaft housing sub-assembly (cam tower) seam, which leaks for the same reason. What makes this a wallet-level issue rather than a nuisance is the repair: on the transverse V6 the timing cover cannot be pulled with the engine in the car, so the correct fix requires engine removal.

On the 2005-2006 Toyota Avalon, toyota recalled a small number of 2005-2006 Avalon sedans under NHTSA campaign 06V096000 because of an air bag inflator that was not assembled correctly. The affected inflator is the type used in the side air bag, the curtain shield air bag and the knee air bag assembly, and some units left the plant with an insufficient amount of the heating agents the inflator needs to generate gas. If the SRS system fires during a crash, the gas expansion force from an affected inflator may be too weak to inflate that air bag properly, so the occupant in that seating position may not get the protection the system is designed to provide. Nothing about the defect is visible or audible from the driver's seat — an Avalon owner would only learn about it from a recall notice or a VIN lookup. The campaign covered 133 vehicles in total across all of the Toyota, Scion and Lexus models included, not 133 Avalons.

On the 2005-2012 Toyota Avalon, xX30 Avalon owners report a slow, hard-to-find refrigerant leak: the system cools fine for a few weeks or months after a recharge, then gradually goes warm, and dye tests find nothing in the engine compartment. Two sources account for most of these. The discharge line from the compressor to the condenser corrodes and develops microscopic pinholes that leak too slowly to show dye at the surface, and the evaporator core inside the dash HVAC case corrodes and leaks where no one can see it - dye there simply drains out the evaporator case drain. The evaporator is the expensive one: quoted labor runs roughly 8-9 hours because the dashboard has to come out.

On the 2005-2012 Toyota Avalon, the XX30 Avalon's automatic climate control drives its air-mix (blend) and mode doors with small servo actuators mounted on the sides of the HVAC case - one above the accelerator pedal near the heater pipes, one behind the glove box, plus a mode actuator. The plastic gear train inside strips or the servo hangs up against a binding door, and the actuator then hunts back and forth: a rapid tick-tick-tick from behind the dash that changes with the temperature setting. Because the blend door parks wherever it stopped, the result is stuck-cold or stuck-hot air, or a split where one side blows hot and the other cold. Toyota part 87106-07110 covers the common main/mode actuator on these cars, which is why the failure shows up so consistently in owner threads.

On the 2005-2018 Toyota Avalon 2GR-FE, the water pump on the 3.5L 2GR-FE fails prematurely between 80,000-120,000 miles, developing a coolant leak from the weep hole or gasket surface. If not addressed, complete pump failure causes overheating and potential head gasket damage.

On the 2005-2012 Toyota Avalon, the hydraulic power steering rack on 2005-2012 (XX30) Avalon models (the 2013-on Avalon switched to electric power steering) develops internal seal leaks. Fluid weeps from the input shaft seal or the rack boots, causing a gradual loss of power steering fluid. As the fluid drops, the power steering pump whines and groans, and steering effort increases. In severe cases, the rack leaks enough fluid to drip on the garage floor and the steering can become dangerously heavy at low speeds. The issue typically develops after 80,000-120,000 miles.

On the 2005-2012 Toyota Avalon, 2005-2012 (XX30) Avalon dashboards crack extensively from UV exposure and heat cycling. Deep cracks spread across the top surface creating glare hazards. Toyota issued Warranty Enhancement Program ZE6 extending coverage for cracked and/or sticky/melting dashboards on 2005-2010 models; primary coverage ended May 31, 2017, with secondary coverage of 10 years from the vehicle's first use.

On the 2005-2022 Toyota Avalon, the front strut mount bearings on the Avalon wear out and develop a popping, creaking, or clunking noise when turning the steering wheel, particularly at low speeds and when turning while stationary (like parking maneuvers). The bearing allows the strut to rotate as the wheels turn — when it wears, metal-on-metal contact creates the noise. The noise is most noticeable in cold weather and first thing in the morning. The issue affects all generations of the Avalon but is most common after 60,000-80,000 miles.