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  1. Magnum General Discussion (2005 - 2008)
    After 1st. start-up of the day. my '05 RT has developed a persistent surge during warm-up. It's most noticeable @ 1,500 RPM's & disappears completely by 2.000 RPM. I usually hold it in 3rd. gear to keep the RPM's up until the motor reaches operating temp. Once the motor is warmed up, the surge...
  2. 300C, Magnum RT & Charger RT (5.7L V8)
    Hello all. 2010 Chrysler 300S Long tube headers, full 3" exhaust with high flow cats Comp 274 Phaser Cam Tuned with an exhaust leak stock converter After we got the exhaust leak fixed, it seems I can't always come to a stop with it in drive, or else it surges and gives itself throttle to not...
  3. 300C, Magnum RT & Charger RT (5.7L V8)
    2012 Charger R/T AWD... 1200-2000 rpms and light load, the car will pulsate / surge the rpm up and down 200 or so in a very consistent manor. I have HP tuners. MDS is disabled. I scanned it again last night looking at all the pedal positions, desired throttle positions, as well as commanded...
  4. The SRT-8 (6.1L and 6.4L V8)
    ok came right in an typing while fresh on the brain. Was driving and slowed down to about 12 mph. Was holding steady between 12 and 15 for about 30 seconds then it happen. What happen was I pushed down on the gas to speed up and instead of speeding up the pedal just went to the floor and the car...
  5. Newbie Check-In
    Just bought my first 05 magnum all stock, really clean magnum blue color...just finished doing spark plug change and cleaning the throttle body. Its running better then it ever has. Except for the surge that comes and goes in park or low RPM???????? Have no clue what to look into any suggestions
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