QuestionQUESTION: My wife's 2005 dodge grand caravan 3.8L V6 is having a rough idle and is shooting a P0300 code as well as a 11306, however, I have changed: the MAP sensor, both O2 sensors, plugs and plug wires, coil pack, intake air flow sensor, PVC valve, replaced the knock sensor, and have reset the computer several times. I am about to check compression and vacuum causes transmission to overheat, and seems to be better for short period of time after computer is reset but then goes back to doing it. Its getting worse every day. Please feel free to email me and give me some ideas. My mechanic to ask, my father, died 3 years ago and I am at a loss. Thanks again guys.
ANSWER: Hi Steven,
Do you have a name/description for the 11306 code, and does it have a letter prefix?
What do you do when you "reset" the computer?
What do you mean by "check compression and vacuum CAUSES transmission to overheat?
Thanks for clarifications.
Roland
---------- FOLLOW-UP ----------
QUESTION: The codes are P0113 and P0300and P0204 I know what these codes are but nothing is helping. The trany boils out small amounts of fluid but its not timing Cuz when I clear the codes with my computer or - battery post it runs fine for awhile
AnswerHi Steven,
The 0204 is about the fuel injector circuit #4 being open or shorted to ground so check the wiring of that, or the injector itself could be bad. But I would think that you would not have a 0300 but rather a miss on a single cylinder (like an 0304). Check the wiring on the intake air temp sensor. There are of course many possibilities for an 0300:
in addition to what you have done it could be an engine mechanical problem (so check the compression), or a fuel mixture problem (so check the egr valve to be sure it's stem is moving freely and lub it if not).
Roland
