How often oiol change on 2004 avalon - 2004 Toyota Avalon

this is for 2004 don't know if same engine.

Hi Alan:
Engine sludge is a condition as opposed to something that is broken. It is an accumulation of dirt and oil on the inner surfaces of the engine that typically happens when non detergent oil has been used and not regularly changed.

Putting high detergent oil in a sludged up engine will release all kinds of gritty contamination onto the oil, and can really mess up your engine in a hurry UNLESS you change the oil right away. That way the inside of the engine gets cleaned up, and the dirty oiol gets removed so you don't have all the nasty stuff wearing out the moving parts.

every 5000 miles

if they only sucked the fluid out and didnt change your filter that could be the problem it needs to be drained and refilled. hope this helps let me know and good luck

I would recommend at least once a year, that way if there are any leaks in the trans they will be picked up before they turn serious.

better safe than sorry.

Toyota Avalon (2004 - 2007) - fuse box diagram you find here


https://www.autogenius.info/toyota-avalon-2004-2007-fuse-box-diagram/

i recommend you go to a workshop to change

Typically any timing belt replacement interval is 60k-75k miles. The book will however tell you 90k. Now it depends on what engine your Avalon came with. The 3.0 is a non interference engine meaning if it does snap, it will not cause any damage to your engine. The 3.5L engine however i dont know if its a interference engine or not but i dont see anywhere where it says it is. As always suggested, change your water pump as well, as it runs off the timing belt. Once i didnt change the water pump and a week later it locked up on me and ruined my perfect new timing belt. Truth be told :) lol

yes for the 3 litre motor toyota recomends every 90 000 miles

The first thing to do is try another key. Perhaps your transponder key has failed.
You can identify a 'transponder key'; it has a wide part wher you turn it.