Hemi 5.7L Plug and WiresĢ004 Dodge Ram 1500 5.7 Hemi Spark Plug Wire Diagram #4 Now do cylinders #2 through #4 in any order – just make sure each wire goes to its corresponding cylinder according to the firing order! How Many Spark Plug Does a 5.7 Hemi Have? At this point, you may want to mark where cylinder #1’s connection point is so you don’t get confused later on. #3 Follow that wire towards the distributor cap until you find its connection point – it will either snap into place or screw on. It should have a boot (a rubber cap) that’s connected to one end of the wire. #2 Take a look at where cylinder #1’s spark plug wire ends. There will be a spark plug sticking out of it (or there should be – if not, make sure all your plugs are accounted for before proceeding!). #1 Find cylinder #1 – this should be easy because it’s usually at the front of the engine (on V6 and V8 engines) or at the top (on inline engines). Once you know the firing order, just follow these simple steps to reattach the wires: You can also usually find it listed on a sticker under the hood near the engine (often on the radiator support). To find out the firing order for your particular engine, consult the owner’s manual or a repair manual. The next time around, it’ll be 3-4-2-1, and so on. That means that cylinder number 1 fires first, then 3, 4, and 2. The firing order for most engines is 1-3-4-2. But before you do that, you need to know which order they go in. Over time, they can become fouled with deposits and need to be replaced. If your engine is running rough, one of the first places to check is the spark plugs. How Do I Know What Order My Spark Plug Wires Are? The #1 spark plug wire will go to the #1 cylinder, the #3 spark plug wire will go to the #3 cylinder, and so on. Which Spark Plug Wire Goes to Which Cylinder?Īssuming you have a standard 4-cylinder engine, the firing order is 1-3-4-2. Be sure to route the wires away from any hot or moving engine parts.Ĥ) Reattach the coil packs and reconnect any electrical connections that were removed during installation. To do this, simply pull on the wire boot until it pops off the spark plug.ģ) Install the new spark plug wires onto the spark plugs. The spark plugs on a 5.7 Hemi engine are located under the coil packs on each cylinder.Ģ) Remove the old spark plug wires from the spark plugs. Here is a step-by-step guide on how to change spark plug wires on a 5.7 Hemi engine:ġ) Locate the spark plugs on the engine. If your vehicle is equipped with a 5.7 Hemi engine, changing the spark plug wires is a relatively simple task that you can do at home. Once you have all of the connections figured out, simply match up each wire with its corresponding terminal on the coils and plugs, and you’re ready to go!Ĭredit: How Do You Change Spark Plug Wires on a 5.7 Hemi? There will be only one boot per cylinder, so it should be easy to figure out where each wire goes just by following it from its respective coil. The other end of each wire will connect to a spark plug boot, which sits on top of each spark plug. Once you know which cylinder is which, trace the wires from the coils to see where they go next. If not, consult your owner’s manual or a service manual for your truck. There should be a label on or near the coils that shows which terminal goes to which cylinder. The coils are mounted on the engine, so the best place to start looking for the diagram is in the engine compartment. This means that there is one coil for each spark plug, and the wires go from the coil directly to the plugs. The 2005 Dodge Ram 1500 5.7 Hemi uses a coil-on-plug ignition system. This simple guide will show you where to find the diagram and how to read it. If you’re looking for a 2005 Dodge Ram 1500 5.7 Hemi spark plug wire diagram, you’ve come to the right place. If you are not able to find this diagram, you can ask your local auto parts store for a copy. This diagram can be found in the owner’s manual of the vehicle. The 2005 Dodge Ram 1500 5.7 Hemi Spark Plug Wire Diagram is a simple guide that shows the order in which the spark plugs are connected to the spark plug wires.
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