You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Changing spark plugs in a 4.7? I swear I did a search
I did a search and couldn't find the answers to my questions, so here they are:
1. Is changing the plugs on a 2004 1500 4X4 with a 4.7 just as straightforward as pulling the old plugs and replacing them with new ones? I understand the hemi's are a pain, so I'm just wondering how the job is on a 4.7. Do I need a torque wrench? How many pounds should I torque them to?
2. Is it ok to spray a little pb blaster on the plugs the day before to hopefully loosen them up? The last thing I want to do is wreck the threads trying to remove them.
This ad is not displayed to registered and logged-in members. Register your free account today and become a member on Dodge Forums!
I had no problems on mine. I have a 2008 though. There simple. The only problem I ran into was finding a spark plug socket to fit down the shaft where the spark plug is. Almost got one stuck cause it was a little to fat. Luckily I had like 5 different sockets. I used a 5/8 I believe to remove them
Its not that difficult on the 4.7. We only have 8 plugs. The last 2 on the passenger side are the most difficult. The plugs shouldn't be smoked down were you should need any bp blast. I don't have my manual with me. Plugs don't get a lot of torque. Make sure you put some anti seize on the threads before you reinstall the plugs. The best socket would be a 5/8 spark plug socket, but you can use a piece of vacuum tubing to start the plugs. You find a piese that will fit snuggle around the insulator. Its best to start them by hand so you can tell that they have start smoothly. I think I got most of the basics. Maybe someone else will chime in with the torque.
Torque on the plugs is 14-16 lb/ft. If you're worried about removing the threads when you remove the plugs, do the job when the engine is cold, that is, before starting the truck in the morning. A dab of anti-sieze on the threads is a good idea. A small dollop of dielectric lube on the plug insulator will help keep the boot from sticking to the plug for next time.
Real cars don't have daytime running lights