I have a 2007 toyota tacoma 4 cyl.4x2 auto. trans. This may sound crazy but, where do I find the spark plugs? And is there any special procedure I need to follow. I have had 4 Tacoma's and this situation is a first.

 

This shows you where they are located.

http://www.ncttora.com/fsm/05+/data/...a/02100110.pdf

 

This is a complet service manual. It's for an 05 and 06 but should be the same for your 07. There should be a section on replacing the plugs.

2005 to 2006 Toyota Tacoma OEM Repair Manuals