spark plugs are under drivers seat , what a pain but easy . four 15mm bolts on seat 2 on handbrake then lift carpet the rest are 13mm bolts about 10 of them , then remove cover , under that there is three 10mm bolts which holds a plastic cover on which hides the plugs , u will need a 16mm spark plug spanner :O)
To change the spark plugs on a 1991 Toyota Previa, first, disconnect the negative battery terminal for safety. Remove the engine cover if applicable, then carefully detach the ignition wires from the spark plugs, noting their order. Use a spark plug socket and ratchet to remove the old plugs, and then install the new spark plugs, ensuring they are properly gapped. Reconnect the ignition wires and the battery terminal, and ensure everything is secure before starting the engine.
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Remove the passengers side front seat. remove the metal engine cover after pulling carpet back, remove the long metal cover covering the spark plugs and wires.
How do you change spark plugs in a 6 cly Toyota Camry?
To change the Spark Plugs on a Previa (1991-1996) you have to remove the passenger front seat, lift the carpet and then you will find a cover on the floorplate that has to be removed. Once the floorplate cover is off you will see the engine. There is also a small cover over the spark plugs and wires that has to be removed. The 2.4 liter petrol engine uses small 16mm spark plugs and a small 16mm socket will be needed to replace the plugs.
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.
There is an article with video on how to change spark plugs at ; http://www.carbasics.co.uk Look in their 'how to' section.
Remove the old plugs, install new plugs.
To replace the spark plugs on a 1995 Toyota Previa, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the engine cover if necessary, then carefully disconnect the ignition wires from the spark plugs. Use a spark plug socket and ratchet to unscrew the old plugs, and install new ones by hand to avoid cross-threading, followed by tightening them to the manufacturer's specified torque. Finally, reconnect the ignition wires and the battery terminal.