Does the 2003 highlander 4 cyl have a timing belt or a timing chain?

parts list show both chain and timing belt used on highlander motors

need to know which motor

Highlander FWD 3.0 V 6 1MZFE Highlander AWD 3.0 V 6 1MZFE Highlander FWD 2.4 L 4 2AZFE Highlander AWD 2.4 L 4 2AZFE


Toyota Highlander Water Pump Parts Discount Online Store
one 2003 highlander has an external serp belt driven water pump

for all round reliability you replace water pump, seals , tensioner
and timing belt

timing might be a little off

Your timing belt should have been done at 60,000, make sure it has, ask the owner if you can. If not, Get it done. I wouldn't risk it. While you have the front of the engine off, replace the belt tensioner and the water pump. Are you sure this has a belt? If it has a chain, don't worry about, just change the oil. Check the belts, fluids, might change the filter in the tranny. And fill up the battery. Should be OK.

4 cyl engine 2.7L , has t / chain.
V6 3.0L , has timing belt.

probably a timing belt

Starting around 2003 toyota changed the design of their 4 cyls in the camry, they no longer use a timing belt, they use a chain that doesnt require you to change it like a belt.

after 100,000 miles you have wear in the transmission and rear end gears and bearings, it is not normal but it is not a real problem that can cause a breakdown, to fix this you could spend upwards of $3000.00, so in my opinion just live with it.

this engine has a timing chain not a belt

most likley its going to be an one of three things if it is a 1MZ-FE engine #1 air flow meter #2 IAC Valve #3 EGR valve hope this helps

If you have a chain, there is NO replacement interval. ALL 4 cylinder Highlanders have timing chains.