I have a 2006 dodge caravan 3.3L with 237,000 miles on it.

I noticed that the engine light came on. I used a code machine and it came up with P0306 and P0304. Not sure what these actually are referring too..

Cant seem to notice any difference in idling or power or anything.

Any ideas on where to start for resolution?

 

i would start with google as to what those codes mean. once u find the definition to the codes, u can start resolving the issue

 

That's a lot of miles for a 2006. How's it been working?
Those codes pertain to misfires (#4 & #6 cylinders). When did you last change the spark plugs and spark plug wires? #4 and #6 are at the front, on the Driver's side. Hit any big puddles lately?
Haynes Manual 2003 thru 2006 has the codes and is a worthwhile investment for some repair work.
This site also has the codes: http://www.allpar.com/fix/computer-codes.html

 

The engine runs well. Very smooth, and has plenty of power. I almost probably go over board on maintenance. But it has rewarded me..However, the wires were replaced at 130000 or so and I havent messed with them since. I think I am going to go with the wire replacement and see how that gooes.


The plugs were recent. But I didnt think about doing the wires, since they looked ok..So Ill fix that and hope this fixes it.

 

Jordan12, I'm very happy you have a 2006 Caravan with so darn many miles on it. I'm looking at its brother, the 2006 Grand Caravan (hooray stow away seats!) at 47k miles for a purchase price of $10k...and was wondering...

...is it hard as heck to change out the spark plugs on this side mounted engine?

I had a chrystler town and country, year 2000, that just kicked my butt when it came to changing out spark plugs....so hard to get to the back last one!

 

The '06 is a piece of cake compared to the 2000. You can do the entire thing from the top side. I just reach around the drivers side of the plenum and can reach all the plugs. If you remove the wiper module, it is even easier.