on top of engine under the black plastic piece. Each plug has it's own coil so you need to remove electrical connector, 10 mm bolt and twist and pull up on coil to gain access to plug. Be careful on what plug wrench you use, mine got stuck and took 1/2 hour to remove.
A 2007 Toyota Prius has 4 spark plugs.
The 2007 Toyota Matrix has 16 valves.
The 2007 Toyota Matrix has a 5-speed manual.
The 2007 Toyota Matrix has an inline 4 engine.
The 2007 Toyota Matrix is a gas-powered vehicle.
The 2007 Toyota Matrix's turning circle is 36.8 ft..
The height of the 2007 Toyota Matrix is 5 ft. 1.6 in. (61.6 in.).
The 2007 Toyota Matrix is 14 ft. 3.3 in. (171.3 in.) long.
The 2007 Toyota Matrix has double overhead cam (DOHC).
The curb weight of the 2007 Toyota Matrix is 2679 lbs..
The 2007 Toyota Matrix runs on regular unleaded.
The 2007 Toyota Matrix has a drag coefficient of .32 Cd.