INDY_NEBO Posted July 10, 2013 Report Share Posted July 10, 2013 Recently bought an 2011 DJ with the 3.6 and has 44,000 miles. Check engine light just came on, got it scanned, its the #2 cylinder misfiring, so most likely needs new head. Me and the wife have a road trip to Myrtle Beach this weekend (we live in Indy). I know theres no way this is getting fixed before the trip, so my question is will this cause serious issues while on the highway or is it just an occassional misfire that wont have any serious effects until going unchecked for thousands of miles? Also, might there be a valve cleaning fuel addative that will help? bout to start seriously panicking if we cant drive this thing to vacation!!!! Quote Link to comment Share on other sites More sharing options...
Rgwog Posted July 10, 2013 Report Share Posted July 10, 2013 Who said it would need a new head? Would try all options before that. Check the plugs, the ignition system, fuel. If it does need a new head check to see if this would be covered by a warranty. If you do take it on the trip gas mileage will suffer, engine may lag and run rough but I have seen worse things on the road. Quote Link to comment Share on other sites More sharing options...
bigtsr Posted July 10, 2013 Report Share Posted July 10, 2013 I agree you should check every option before throwing dollars at your problem, however if you read the posts there have been several DJ owners (2011) who have had the head replaced with regard to these symptoms- Chrysler is aware of the problem with a limited number of the 3.6s. Quote Link to comment Share on other sites More sharing options...
davidlb512 Posted July 10, 2013 Report Share Posted July 10, 2013 The early 3.6's that had the cylinder #2 misfire, have consistently had the head on that side of the engine replaced. It will be covered under your warranty, and it will also be fine for you to drive on until it gets replaced. I've been driving mine for the past 2 weeks, waiting on the head that is on back order. The only issues are what you stated, a little lag, slightly rough idle at times, and possibly degraded fuel mileage. Good thing is, got the call today that the head is in, and now I just have to go drop the Journey off at the dealer. INDY_NEBO 1 Quote Link to comment Share on other sites More sharing options...
INDY_NEBO Posted July 12, 2013 Author Report Share Posted July 12, 2013 Thanx for the replies folks, I'm gonna proceed as planned and hope for the best! Any recommendation on a fuel additive to clean the valves? Quote Link to comment Share on other sites More sharing options...
Rgwog Posted July 12, 2013 Report Share Posted July 12, 2013 I use Lucas here on every thing I drive and never had any issues. Both have over 150000 mi on the clock. Quote Link to comment Share on other sites More sharing options...
bamboo510 Posted July 22, 2013 Report Share Posted July 22, 2013 I had the cylinder 2 misfire also at about 18K miles. Dealer had my DJ for about 4 days and replaced driver side cylinder head which has a different design for better coolant flow. Glad it happened under warranty. Quote Link to comment Share on other sites More sharing options...
Journeyman425 Posted July 24, 2013 Report Share Posted July 24, 2013 No need for additives to clean the valves. There's enough additives in most gasoline to control carbon buildup. The issue with the valves has to do with insufficient cooling in the valve seat area which causes the valve to burn just enough to prevent it from fully seating, which in turn causes the misfire. Unless the check engine light is flashing while driving, then it will not harm the catalytic converter to drive it. All of the compression leak down tests that we've done to determine a faulty head came in at 40% or less, which has not been enough to cause a dead miss, but will produce the rough idle / performance lag issues described above. Quote Link to comment Share on other sites More sharing options...
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