Question about 2001 Dodge Caravan
I have a Dodge Caravan. About 2 weeks ago I added a fuel line cleaner with very little gas in the tank. About 20 minutes later the check engine light came on and has been on ever since. I went to Auto zone and had the codes scanned and the code P0303 came back. I was told that code means misfiring cyclinder number 3, however the guy at auto zone told me that the code that came up was P0303 but it ment cylinder 4 was misfiring. I wasnt sure what the problem was so I changed the spark plugs in cylinders 3 as well as 4. The motor idles less rough now but still has a unusual idle to it. When I took out the old spark plugs (which are only 5 months old) they were covered in oil, smelled burnt and they were heavily corroded. I have no smoke coming out of the exhaust what so ever.
Does anyone know what could have caused the spark plugs to burn or misfire?
Also the rough idle after spark plug problem was fixed, Can that be the fuel filter since it is a 2001 and it is the original filter?
Anyone know how to change a fuel filter on a 2001 caravan 2.4L 4cyl?
I have a 2001 Dodge Grand caravan Sport i have a misfire in cylinder 2 i changed the spark plugs,wires,coil,map sensor,COMPUTER,had it checked for vacum leaks (nothing),fuel filter.Basically I have almost redone the whole van and i still have the same problem. Can anyone suggest what else i could try! please
Posted on Oct 19, 2009
Try this. My van has the same problem and I have replaced all the obvious parts...plugs, wires, etc. One thing I discovered quit by accident was that air is getting into my fuel injection line that feeds the problem cylinder. There is a small valve on the line similar to the one you have on you tire. When I get the misfiring problem I shut the engine off and push on this valve. If the line is primed properly it should spew fuel immediately. But when I do it during a problem episode a bunch of air comes out first before the fuel finally comes spraying out. When I start the engine again it just takes a few second for the line to build pressure again and then the engine runs fine again until the next episode. I'm yet to pinpoint the cause of the air leak, but at least I know what is causing the misfire now!!
Posted on Jul 13, 2010
The fuel filter should be under the rear left of the vehicle in front of the back left wheel.It wont hurt to change the fuel filter but I dont think thats the problem.Check your catalytic converter,it may be clogged.The engine light may of been triggered from additive do to emissions.Also check the O2 sensor
Posted on Sep 14, 2009
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Posted on Jan 02, 2017
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