There is not an inline fuse for the coil pack that could have blown. If you have no fuses blown and the connection from the coil pack to the ingition module under the distributor are good then I would replace the coil pack. I am not sure on the 4V decrease when turning the motor over. It will decreas a little due to the fact that while you are trying to start the motor the alternator is not feeding power to the coil pack, you are using power stright from the battery. I would think you would only have a drop of 1 to 2 Volts. I would ask the guys at your local parts store.
Wednesday, July 11th, 2007 AT 2:42 PM