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All sienna 2008 or older have timing belts. It easy to tell look at you sienna and see if there a timing belt cover. that covers the cylinder head. All vehicles that use timing chains are enclosed and not cover is showned. Since the timing chain is always be lubericate by the engine oil all the time. That's why it not exposed.
What else can I help you with?
Does a 1998 Toyota Corolla le have a timing belt or a timing chain?
The 1.8 litre four cylinder engine in a 1998 Toyota Corolla has a timing CHAIN
Need a diagram of a 1998 Toyota Camry timing chain?
Toyota Camry 1998 has a timing belt.
How much cost to replace a timing belt and water pump on 1998 Toyota Camry?
how much does it cost to replace the timing belt in a 1998 Toyota sienna.
Does a 1998 Toyota Camry le have a timing chain?
No, it has a timing belt.
Does a 1998 Toyota LE have a timing belt or a chain?
It has a timing belt.
2004 sienna timing chain?
== == The Sienna manual recommends you change the time "belt" at 90,000 miles. From the toyota.com website: Sienna 1998-2006 V6 have a Belt 2007 V6 Chain
When do you change the timing belt on a 1998 Toyota Sienna?
Official: 100,000miles Non-official:200,000miles.
Does a 1998 Toyota Corolla have a timing belt or timing chain?
98 - 2008 has timing Chain, according to toyota.custhelp.com =p (1997 has timing belt)
What are the timing specs for a 1998 Toyota Corolla?
no timing spec at all due to used timing chain.
How do you know if you have a timing belt or timing chain on a 1998 Toyota tacoma prerunner?
2.7 has chain, 3.4 (6cyl.) has belt
Does a 1998 Toyota 4Runner v6 4x4 sr5 have a timing belt or chain?
Timing belt.
Cost of replacing timing belt in Sienna 2005?
Nothing because it has a chain. No Belt!!!I disagreeSienna 1998-2006 V6 Belt2011 4 Cylinder Chain2007-2011 V6 Chainhttp://www.tacomaworld.com/forum/technical-chat/19496-timing-belt-timing-chain-all-toyotas-toyota-com.html
