Cylinder ID, Firing Order & Ignition Wire Routing GM 4.3L Vortec V-6
In this video I go over the cylinder ID, firing order and ignition wire routing on a GM 4.3L V-6. The cylinder ID starting from the front of the engine going back on the driver side is 1,3 and 5. On the passenger side starting from the front going back it is 2,4 and 6. the firing order is 1,6,5,4,3 and 2. As mentioned in the video the wire routing is simple. The distributor cap of the distributor is numbered at the base of each ignition wire connector. These numbers correspond to the particular cylinder that each ignition wire connector fires. So naturally one end of each ignition wire goes to the ignition coil connectors on the ignition cap. The other end of each ignition cable goes the spark plug of the respective cylinder that is indicated on the ignition cap.
Note: The GM Vortec 4.3L V-6 has been used on many GM vehicles. The information found in this video should apply in part or in whole to most of these engines. As mentioned in the video there may be some variations in this information from year to year and from model to model. Please do your own research to ensure the information found in this video is applicable to the vehicle you are working on.
Here is a great article on the 4.3L:
https://en.wikipedia.org/wiki/Chevrolet_90%C2%B0_V6_engine
Disclaimer:
Barbour's Auto Help is not responsible for any damage or personal injury incurred in the process of performing any auto repairs done by you the viewer. Automotive repair is extremely dangerous. Repair your vehicle at your own risk. It is the viewers responsibility to verify all information and procedures as outlined in YOUR REPAIR MANUAL AND OWNERS MANUAL FOR YOUR VEHICLE. Owning and using a repair manual suited for your vehicle is essential for correctly and safely performing ANY repair to your vehicle. Always wear safety glasses, protective gloves and heed all instructions for use applicable to any piece of equipment you may use. Due to circumstances out of the control of Barbour's Auto Help, Barbour's Auto Help makes no guarantee that by the use of the information given in this video a quality repair will be made. Barbour's Auto Help makes no guarantee that the information provided is totally complete, synchronized and accurate. Verify everything using an appropriate repair manual. Verify everything with your own research.
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