No. The camshaft is driven by the timing chain.
The 2003 Toyota Corolla has double overhead cam (DOHC).
It has a cam belt.
chain
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Are you sure it has a cam belt. I think it has a cam chain. Look in your owner's manual or call your local Toyota dealer.
It needs one sepentine belt........If the Corolla has AC it needs one sepentine belt w/ac
Belt, change it at 60,000 miles
Chain
No, it has a cam chain.
Both. The 4 cylinder has a cam chain and the V6 has a cam belt. Replace the cam belt & water pump on the V6 at 110,000 miles.
The water pump is driven by the cam belt and is hidden behind the cam belt shield.