position of spark plugs on 2003 Toyota coralla
There is an article with video on how to change spark plugs at ; http://www.carbasics.co.uk Look in their 'how to' section.
Change the valve cover gasket.
Corollas has a four cylinder engine, it means it has 4 spark plugs.
Take it to a Toyota dealership
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How do you change spark plugs in a 6 cly Toyota Camry?
In the cylinder head, on top of the engine block.
To change spark plugs on a 1994 Toyota Camry, remove the black shafts. The spark plugs are down the four holes. Use a socket set with extension to reach the spark plugs. Replace old spark plugs with new ones.
The correct spark plug gap for a 2000 Toyota Corolla is .043 inches. Most spark plugs are pre-gapped, but its best to check before installation.
Remove the old plugs, install new plugs.