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Well, got the new wires today and installed them and did a seafoam treatment while I was at it. It definitely runs better, and after a good long drive I got back and let it idle for a few minutes, and no misfire :thumbsup: :D It still isn't a perfectly smooth idle, but I think it's...

I'm pretty confident I found the issue as well. I can't wait to get money to put some new plug wires on this thing, hopefully it helps the gas mileage on it. I've been averaging 16.5 with quite a bit of highway, and I would like to see better with this truck

Well I may have found the issue. I finally remembered to go out and have a look with it nice and dark outside, and sure enough, I got arcing going on with that number 4 wire. It looks like a bad connection down towards the plug, that's where most of the action was. It also shot some random...

Thanks, I will definitely give it a clean and see what happens. I should not I tested the coil pack and the resistance checked out fine. I'm still kind of suspicious about the wires as well, I will take a look at them once it gets dark and see if there is any arching going on.

So I went ahead and got a set of the SP432s and put them in. For starters, somehow I had the gap about .10 too big on the other ones, so that wasn't helping for sure. However, the problem is still there. I drove it for awhile and it definitely felt better though. I haven't gotten a CEL...

One more thing for right now until I go tinker some more... OE plugs for this truck are Motorcraft part# 432. They are not the normal platinums, they are special ones. Maybe that is the problem.

I don't remember the exact compression readings, they were all within 10 psi of each other though. I didn't swap the plugs, I should try that and see what happens. I do know it through the same codes with the bosch plugs, which leads me to believe they aren't the problem.

Okay, so compression checks out even through all cylinders, so that should help rule out a head issue. I swapped wires with no change, tested as well and they all have very low resistance. I looked up the spark plugs on the motorcraft website by using the VIN number and it came up with...

Both, actually.

The plugs that came out were new Bosch Platinums that came in the truck, that's the main reason I replaced them in the first place. The wires tested out fine, but I do need to swap them and see if that's the problem. I doubt firing order is the issue, as it runs smooth as silk at anything...

I'm tempted just to throw some iridiums in there anyways since I believe they are supposed to be the best plugs. I drove it again just now and on the warm start there was initially no light but after a minute it came on. Ran the codes and I had one for random multiple misfires in addition to...

So I looked around, the plug that is listed for my truck on the motorcraft website is a nickel plug. I looked and I can get Iridiums for my truck, but I can get all types of plugs. So who knows. It is strange the part number for the plugs is so hard to find.

It doesn't say anything under the hood about the plugs other than the gap. However, I looked in the owners manual to see what plugs it had listed, and it just said to take it to the dealership. That kind of tips me off about the plugs being strange. I found a service manual so I will see if...

Yea I know about the head issues, it would seem to me on such a low mileage motor it shouldn't be a problem. I do need to do a compression test, just haven't been able to do it yet. It doesn't say anything anywhere about running Iridium plugs, so I will assume for now the platinums are fine...

So I recently bought a 2004 Ranger Edge with the 3.0L in it, and for the most part it runs beautifully. However, I keep getting p0304 (cylinder 4 misfire) and a p0316 (misfire detected on startup) codes along with a slightly rough idle. I was only getting the codes on hot startups, and...

This truck has made me develop a much deeper love for Rangers than ever before, that's for sure.

Thank you Tbars :thumbsup:

I haven't been here in awhile since I got rid of my Explorer. I just bought a new truck this past week though, and I love it. It is a 2004 Ranger Edge, 4wd, with 31x10.5 Goodyear Wrangler Muds on 15 inch American Racing rims. Powered by the 3.0 V6 with the 5speed auto transmission. This one...

Sorry guys, the truck is gone. I have a few small parts I will sell whenever I find them all, but not what you two are looking for.

Don't be too intimidated, I did it with no prior experience and it all worked out. Sucks you have to go through so much of the transmission just to get to that one stupid band. Good luck.

I had a similar issue with my transmission, except worse. I don't think I even had second gear, and it was interesting to get it to shift into third. Turned out my intermediate band was broken completely. After that was fixed and I freshened up the inside it was fine. Well, until the torque...

Yep, it's just an open tube so the differential isn't sealed tight and can breathe. Only reason you would have to worry about it is if you plan to off road in deep water a lot, in which case you would need to extend it up as high as possible. If it is hanging down for some reason, just find...

I just thought of one other thing that might work. If you could get a sawzall or dremel or whatever in there to cut the nut lengthways, you could theoretically cut each one of them on two opposite sides and they should come off then. Beyond doing that, drilling them out, or using a nut buster...

If you can, see about getting some vice grips on the nut and drilling the stud out from the nut, then if the nut doesn't fall off you can probably break if off easily. The suggestion above mine is good too if that doesn't work. Since you are 4x4 it will be easiest to just replace the rotor...

Aside from putting something mild in your oil to help clean them, and using a good oil and filter as well, there's really no reason to go in deep to replace them. Lifters are expensive, and you have a very small amount of tick compared to a lot of people, so I wouldn't worry about it. Mine...