How often should the spark plugs be replaced on a scion xa 2006?
Ok is this the first time that you have changed them, most plugs will go for 60,000 miles but you be the judge, if you get bad milage than change them
SOURCE: need to change spark plugs in my 2006 scion xa
try this article. Its pretty simple.
http://scionlife.com/forums/showthread.php?t=16364
SOURCE: how tight do i torque the spark plugs on a scion
If you do not have a torque wrench, as tight as you can get them holding a 3/8 drive ratchet with the extension between your index and middle finger and your thumb all the way over the top of the ratchet. This yields about 20 foot pounds unless your are a freak of nature.
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