why my 09 dodge grand caravan keep misfiring/rough idle?


Asked by May 31, 2015 at 06:07 PM about the 2009 Dodge Grand Caravan

Question type: Maintenance & Repair

I changed out my spark plugs, the wires , coil pack and injector harness.   Car still have
misfire/rough idle in drive at stops.  And also cleaned the fuel injector with that cannister
thing.  Then the problem stopped for like a day.. then it happened again plz help dumping
to much money into this.  And I dont wanna go to dealership. bunch of crooks. tytytyty

8 Answers


First I would try adding fuel injector cleaner to the gas tank since you said it worked for a day the first time may be still dirty injectors. If it does it after that you may have to replace some of your injectors. Also try replacing fuel filter.

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Best Answer Mark helpful

Sound,s like one of the fuel injectors,is bad,

Best Answer Mark helpful

There is more then one fuel injector? Thanks for the responds fellas I did put fuel injector cleaner in my tank then fill it up. Should I change fuel filter first? And is it cheap?


Yes I would and it is pretty reasonable to change filter depending on who you get to change it.

1 of 1 people found this helpful.

And yes there is more then one fuel injector. If you get the right mechanic to look at it he can determine which injector is causing the problem.

1 of 1 people found this helpful.

Firebird338,is correct,


Oh man thanks a lot guys I'll keep you posted imma try the filter first. Then see what happens. ALOHA

Clean your battery connections and make sure the clamps tighten up properly. You may have to replace the cable ends or modify them to clamp together farther. That works on my 07, my 98 grand caravan had similar issues but I found a wire on the dash cluster needed re soldered. It was the main power wire and is not supported.

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