Sputtering at a light

[monr2773]

Stopped at a light it starts putt putt putt sound. It sounds like its going to die. I put it into neutral or park and it idles fine. No codes. I just changed all plugs and wires. I've triple checked them and can't find anything. I replaced a bad vacuum hose. Any thoughts would be greatly appreciated.

 

[mayhem1605]

Could yo possibly have another vacuum leak? Mine did the same thing this past winter. and I spent hours trying to find the vacuum leak I had. Turns out it wasn't a line, it was the tube that comes from the egr valve and goes into the intake. Apparently the o-ring on it decided to crap out on me, so I ran some silicone around it until the weather got a little warmer and i could properly fix it.

 

[monr2773]

The hose I see is very small. I don't see anything wrong with it. A code came back today p306. I replaced the spark plug and the wire. Any other thoughts

 

[jevchance]

Sounds like it could be an injector, or worse. See this thread:

http://www.explorerforum.com/forums//archive/index.php/t-305525.html

 

[jevchance]

Also here, really sounds like it could be the head gasket. Pull out spark plug 6 and note what you see.

http://www.explorerforum.com/forums//archive/index.php/t-195326.html

 

[monr2773]

The plug looks clean and it all looks dry. I don't see any kind of wetness.

 

[jevchance]

But is it super-clean? If its cleaner than the rest of the plugs, it could be the coolant is turning into steam in the combustion chamber and scouring the plug.

Have you tried running fuel injector cleaner through it?

 

[monr2773]

Its got stuff on the end but not much. I will try the fuel injector cleaner.

 

[monr2773]

Wow what a difference the carb/injector cleaner made. Its a lot better but I still have a tsk tsk tsk noise coming from the muffler area. Could this be the catalytic converter going bad?