Is there any particular intake/carb/throttle body cleaner that is sensor-safe? I thought I once saw a cleaner labled as O2 sensor safe, but I haven't run across it lately.

Israel

 

There is a stamp on your TB stating NOT to clean it.

(1) Do NOT use ANY type of cleaner on the throttle body.

The shaft isn't sealed and you can easily damage the plastic gears/sensors within the ETC (Electronic Throttle Control) housing

You could try MILD soap and water, some folks have gotten away with that.

 

I don't have the Hemi.

Israel

 

You can use lots of things if it isn't the Hemi. I normally just use the Valvoline brand with the spray hose already attached. It works rather well. Make sure you pray out your IAC pintle good to get rid of the carbon build-up. Just read the back, it will normally say if it is O2 safe or not.

Others here like Chemtool, Seafoam, etc.

 

I tend to use Chemtool myself, but wanted a second opinion. I haven't looked closely at the setup on the 4.7 yet -- is the IAC pretty obvious? On others, I have been able to pull the IAC off with a couple screws and clean the plunger/pintle/head fairly easy.

What I have is an occasional rough idle and figured I would start somewhere.

 

Nothing wrong with Chemtool, it is a good product.

I do have a few questions for you..
1. How many miles on the plugs?
2. Have you checked the wires?
3. Any codes?
4. How are the filters (air filter, PCV)

If the mileage is around 50K or so, I'd also consider changing the plugs and wires depending on thier condition. It sounds like you have a good plan to start with though, for your rough idleing problem. Also, if you are in a cold climate, I'd put in some fuel treatment to absorb any water if there is any, as an extra measure.

 

'04 with 36k miles - runs great, just an occasional minor rough idle (the kind where I have to turn the radio off to make sure it isn't the bass thumping). New air filter, but I haven't checked the PCV.

Its probably time for some new plugs as well. I haven't done the key trick to get the codes yet but no check engine lights noted -- will have to do a search to get those instructions again.

 

If you haven't had a MIL pop up, I wouldn't bother 'searching' for a code. I think you are on the right track. Not sure of the 4.7L, but DC recommends plug changes at 30K miles on the Hemi.

If nothing, I'd just start with the TB. Or skip cleaning it all together and get a Fastman TB

 

Fastman TB rocks! And he's a great guy to deal with!!!!