2005 Toyota Avalon Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 Toyota Avalon

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The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.


On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.

The 6 cylinder engines have a tendency to leak oil from the valve cover gaskets, especially the one near the firewall.

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A seal between the master cylinder and brake booster may fail and allow fluid to leak into the brake booster. This can cause reduced braking performance. Dealers will replace the seal with a newly designed one free of charge to resolve the concern.

Southeast Toyota is recalling 2005–2011 models for failing to comply with federal safety standards on tire selection and rims. Affected models were sold without the proper load-carrying capacity modification labels, which may cause the driver to overload the vehicle, increasing the chance of a crash. Dealers will mail the correct labels to the customer or install the label free of charge.

Toyota is recalling 2005–2010 Avalon; 2007–2010 Camry, 2009–2010 Corolla, Corolla Matrix, and Rav4; 2010 Highlander; 2008–2010 Sequoia; and 2007–2010 Tundra models because the sliding surface of the friction lever may become smooth during operation, which can cause condensation. This may cause the accelerator pedal to become harder to depress, slower to return, or to become stuck in a partially depressed position, which can increase the risk of a crash. Dealers will install a reinforcement bar in the accelerator pedal so it will operate smoothly.

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I have a 2005 Avalon Limited with 69000 miles. I recently had problems with the dual zone climate control. The drivers side was dramatically warmer than the passenger side with both set on LO. I started by checking the servo controlled actuators for both driver and passenger sides and found they were functioning properly. I read that low R134a refrigerant could possibly cause this. The mec...

2005 Avalon XL; purchased it used in 2007 with 17K miles. Currently 111K and drives like the day we bought it, great car. Very comfortable, reliable, and problem free. We have serviced it regularly at the Toyota Dealership and replaced the brakes (rotors & pads, all 4 corners, 650 w/labor)at 90K, to be expected. This has been an outstanding vehicle for our family and gets 25-29 mpg with plen...

I have had this car from 2007. Gets great mpg and has a lot of power. I have done all the recommended service to car and tires and brakes that's it. Very fun to drive and lot of run.

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