Above Forum Ads



No announcement yet.

2007 Challenger 180-215 - Engine missing after warm up

  • Time
  • Show
Clear All
new posts

  • 2007 Challenger 180-215 - Engine missing after warm up

    When my engine warms up after a couple minutes of running, the engine in my Challenger start running real rough. I won't get past 4000RPM and the engine will shake quite a lot. Pulling the throttle back to 2500RPM, the engine runs rough but every so often smooths out intermittently, less as the engine warms up more. I replaced the plugs and the was no change.

    The only thing I did was changed the oil with Rotella T4 JASO MA certified oil and cleaned out the bilge area. I went over all of the sensor connector plugs and put dielectric grease on them.

    When I unplug the fuel injector or ignition coil on cylinder #1, there is no change. Doing the same on cylinders 2&3, the engine studded significantly more.

    Any suggestions on where to start?

  • #2
    Install new spark plugs as they foul out very easy.
    sigpic2010 RXT-X Turbo: MoTeC M130, GRF Garrett GTX3071R Turbo.

    2005 GTX-SC (185+hp): 66.5 GPS @ 7650 rpm limit. Riva grate, Riva catch can, Groco strainer-shutoff valve, bilge pump, 4" Kana intake-filter, Riva 2*wedge, Solas 12.5/18, Xternal IC.


    • #3
      If you changed the plugs as stated above, then next thing is to check your Inter cooler for leaks.
      Shark Racing


      • #4
        why do the plugs foul? I noticed that if i let the boat sit for a long time at least one of the plugs goes bad, is it the bad fuel?