How do you change the back three spark plugs in a '90 Lumina 3.1 Euro?

Answer 1

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.