To change the back spark plugs in a Lumina with a 3.1 you have to take the two motor mounts loose,(you will see these when you raise the hood, they are black and are in the shape of"dogbones")next you will have to insert at tool that looks like an "A" (it is basically two pieces of metal hinged together with a threaded rod going through the center) you can find this tool at your local auto parts store for around 20 bucks.Once you have installed the "A" tool where one of the "dogbone" motor mounts were, place the transmission in netrual and use a ratchet(preferablly air) to bring the two pieces of the "A" tool together, this will roll the engine over so you can reach the back spark plugs. then just reverse the process and reinstall your motor mounts.
you have to take the motor brackets that hook the motor to the front of the car and then roll the engine forward carefully to get to the back three plugs.
You will three plugs different from the forth plug
You rock the engine forward to gain access to the rear plugs.
you need to take the intake off to get to the back three plugs...
There is a black strip to the left of the throttle body that has three bolts,remove these bolts and pull the strip away and you will see the spark plugs, change them out and line the boots up with the top of the plugs and replace the strip
The 2000 Toyota Avalon spark plugs can be located on each side of the engine. The spark plugs will be near the bottom of the engine. There are three spark plugs on each side.
You must remove the entire intake manifold for you to have access on the three spark plugs located underneath it. it is advisable that a qualified Mitsubishi technician should do this.
You can find the spark plugs for your 2002 Nissan Pathfinder on each side of the engine. The spark plugs will be near the top of the engine. A six-cylinder engine will have three spark plugs on each side.
The spark plugs are located on the side of the engine, near the bottom. A four-cylinder engine will have two spark plugs on each side. A six-cylinder engine will have three spark plugs on each side.
remove three bolts on the top of the rocker cover dust cover then remove plugs in the usual manner
There are three engines available. If it's a 6 cylinder engine, 6 spark plugs. If it's the 4 cylinder engine, 8 spark plugs.
well the dealer wants 350 dollars. i just had my replace for 150dollars. don't buy their(dealer) spark plugs because they want 15.00 each. go to auto zone and you can get the spark plugs there for about 4.00-6.00dollars. spark plug wires are 33.00 each and there are three, but you can get them at auto zone for 34.00 dollars for all three. i hope this helps you.