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off/on hesitation at 10-15 mph caravan

5 messages,  Last post on Nov 20, 2009 at 10:00 AM

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#1 of 5 off/on hesitation at 10-15 mph caravan by rdcres May 25, 2009 (2:33 pm)
I have a 2004 Caravan, 3.3 ltr, 69,000 miles. When slowly going through a neighborhood at 10-15 mph the car has begun to hesitate, run ok, hesitate, run ok...and continues this way until I give it more gas. Under normal or hard acceleration the car runs fine, as it also does at idle. Thought I might have some water in the fuel, so have put in injector cleaner that should also dry any water. Have run about 100 miles since then. The problem is still there. Should I wait longer or do you know of another possible cause. Thanks
#2 of 5 97 plymouth grand voyager runs rough hepl me by ckearby Nov 18, 2009 (8:46 pm)
its a 3.0 and when i start up a hill and give it just enough gas to maintain speed it starts running rough and it pops back through the air breather but if i floor it it will down shift and take off with plenty of power. i have no clue can someone please help me Replies to this message: xwesx (Nov 19, 2009 1:01 pm) ckearby (Nov 19, 2009 9:40 pm) xwesx (Nov 20, 2009 10:00 am)
#3 of 5 Re: 97 plymouth grand voyager runs rough hepl me [ckearby] by xwesx Nov 19, 2009 (1:01 pm)
Replying to: ckearby (Nov 18, 2009 8:46 pm) It may be a timing or vacuum issue. I would start by checking vacuum lines and, perhaps, run some fuel system cleaner through the tank to clean up the injectors. Replies to this message: ckearby (Nov 19, 2009 9:40 pm) xwesx (Nov 20, 2009 10:00 am)
#4 of 5 Re: 97 plymouth grand voyager runs rough hepl me [xwesx] by ckearby Nov 19, 2009 (9:40 pm)
Replying to: xwesx (Nov 19, 2009 1:01 pm) i have put fuel system cleaner in it didnt help. i went to auto zone today and had them hook computer to it and it gave code po300 any suggestions on what to try for that? Replies to this message: xwesx (Nov 20, 2009 10:00 am)
#5 of 5 Re: 97 plymouth grand voyager runs rough hepl me [ckearby] by xwesx Nov 20, 2009 (10:00 am)
Replying to: ckearby (Nov 19, 2009 9:40 pm) Random misfire.... Did you say yours was the 3.0L engine? I think that one has a distributor, so it is likely a problem within that unit... maybe a poor connection in the cap. Other possibilities are worn-out plug wires or a bad coil.

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