Does timing chain go bad?

70

Asked by Emelody Jan 03, 2024 at 05:13 PM about the 2010 Toyota Avalon Limited

Question type: Maintenance & Repair

My 2010 Avalon has 150k miles. I heard timing chains don't break, but do
weaken. How can I tell the condition mine is in? How do I maintain it?

3 Answers

307,255

Timing chains usually last as long as the engine does, however they can stretch due to poor maintenance or guides go bad causing damage if let go too long. The way too check the chain is to bring the engine up to TDC and then check the timing marks from the crankshaft to the cam gears, if the marks line up to the specs then you chain is fine. Now if you hear a clacking sound when you first start a cold engine then you have a chain adjuster getting weak. Hope this helps

307,255

Do not exceed 5000 miles on oil changes in a normal environment if using full synthetic oil. 3000 is using conventional oil. And stick with what is recommended on oil weights.

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