How do you change the spark plugs on a dodge ram 2003 1500 truck?

Answer 1

I just replaced mine yesterday! Tools you will need: 10mm socket, 10 mm wrench, sparkplug socket, spark plug gap tool, socket extensions (at least 6 inches, preferably 2 3-inch) Step 1: Get the air handling system out of the way. The box that holds the air filter sits off to the right (passenger's side) of the engine bay. It has a large flexible hose that connects to another part of the air handling system (sorry, I don't know the name). This second box connects to the throttle body. You need to move this second box out of the way in order to get to the spark plugs. To do this you will need to remove one 10 mm bolt on each side of the box. Once you get those two out, loosen the hose clamp that holds the box to the throttle body. The hose clamp is on the side of the box closest to the dashboard. When the hose clamp is loose, pull the box up and off of the throttle body. I just left the other hose connected and shoved the box up and toward the passengers side to get it out of the way. Step 2: Now you need to remove the bracket that holds the box that you just removed. Once again, two bolts, one on each end. When the bolts are out, remove the bracket completely and set it aside. Step 3: Now you should be able to get to the sparkplugs without too much trouble. The 2003 4.7 liter engine does not have traditional spark plug wires. Instead it has independent coils, one for each plug. These are also called "coil overs". To remove the coil on each plug you will need to remove a 10mm nut that holds the coil in place on the plug. Remove the nut - try not to drop it - and pull off the coil. The coil may be difficult to remove, but it will come. The nut is all that holds it on. Note that the coil is about 6 inches long and needs a little clearance to get all the way off. The spark plugs are way down in there inside of a heat shield. Step 4: Once you have the coil off it's time for the sparkplug socket. I found it easiest to get the socket onto the plugs without the ratchet handle attached. Add your extension(s) and thread the socket down into the hole that you just took the coil out of. Turn and push until you are sure that the socket is fully engaged on the sparkplug. Then attach the ratchet handle and unscrew the plug. Getting the sparkplug, the socket, and the extension out of that hole can be a bit tricky, but your almost there. Step 5: Check the gap on your new plug, add some anti-sieze compound to the threads to make it easier next time and screw it in. Again, I found it easier to remove the ratchet handle from the extension(s), put the plug in the socket and thread all of that down into the hole. Tighten it hand tight and then snug it up with the ratchet. Step 6: Repeat steps 3 - 5 for each cylinder. Re-attach the bracket and the air handling system and fire it up. Good luck!