You don't. The timing chain should last the life of the engine. If you have over 300,000 miles and the engine is making odd noises like metal grinding it may be the timing chain. This information was taken from my repair manual. You shouldn't have to worry about it until the car hits the 300k mark. By then you should have got your money's worth out of the car.
when do you change timing chain on 2003 Toyota 4-runner?
you don't. 2003 Toyota matrix xrs does not have a timing belt. It has a timing chain which never needs replacing.
2004 Toyota Sequoia has a timing CHAIN, not belt, so I would assume that an '03 also has a chain.
It has a timing chain
Chain
Does a toyota corrolla 2003 2.0 D4D have a timing belt or chain?
They have a timing chain, which you probably will never have to be replaced.
Timing CHAIN ( there is no listing for a timing belt for the 1.8 liter 4 cylinder in a 2003 Toyota Corolla on the Gates website )
2003 Toyota Camry 2.4L does NOT have a timing belt. It does have a Timing chain which DOES NOT need to be replaced.
Yes , the 4.0 liter V6 engine in a 2003 Toyota 4 Runner has a timing CHAIN
Timing chain. I checked with dealer's service yesterday regarding my daughter's car. No periodic change required.
The 2.0 liter 4 cylinder in a 2003 Toyota RAV4 has a timing CHAIN