2005 Toyota Avalon 1MZ-FE (XX10)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Intake manifold water pump failure causing coolant leaks
• Valve cover gasket oil leaks with high mileage

First checks

• Inspect for intake water pump coolant leakage
• Check valve cover gasket condition
• Transmission fluid level and condition

Avant de remplacer des pièces

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• The 2005 Avalon was primarily sold in North America; slight trim and equipment variations exist in export markets.
• Engine code 1MZ-FE used in most 2005 models globally where available.