Can anyone show me a 1997 GMC Jimmy engine diagram or explain to me the location of the coil pack?

Answer 1

Typically Chevrolet coil packs in the 90's are located on top of the distributor in the center. There is a cover in the middle of the distributor cap which is usually held on by 2 or 4 screws. (You should not have to remove the entire distributor cap to access it) Then the coil is held in place by either 2 screws, one on the center of each side or 4 screws, one in each corner. Then you just have to unplug the two wire clips on the front. Pay close attention when removing the coil, when you lift it out there will be a rubber pad underneath which will have a small bit that has a spring attached, it is called a carbon brush or a carbon bit or something like that but just be sure to remember how it is sitting in there. I believe the spring should point up but I can't remember if it sits above or below the rubber pad. When you install the new coil you may have to bend the connectors on the end of the positive and negative wires coming off of the coil pack. Some run straight in line and some run at a 90 degree angle to each other, but the new clips are always straight and if your connectors are set at a 90 degree angle you will have to bend the new clip. Just look at the connectors on the old coil pack and you can figure it whether you have to bend the new ones or not. I drew a diagram you can view at: http://s733.Photobucket.com/albums/ww331/HandyD/