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Thread: Tranny problem!

  1. 12-01-2009, 01:48 PM #1
    ajbarbato15
    ajbarbato15 is offline Blown 5.7
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    Tranny problem!

    Ok I need some help here. I have an '09 5.7 with a ProCharger and a few other basic mods (exhaust, etc.). I was driving to work this morning at 5:30 and I was in an unusually good mood. So I decided to drive like a maniac. I pulled out of my neighborhood with the car in 1st gear (its automatic, so I was in "manual mode, or whatever you would like to call it) and ESP disabled. As I put the pedal to the floor, the tires broke loose, RPMs climbed, then all of a sudden I heard a loud "thud" noise, and the car acted like it was in neutral. I gave it some gas and it revved but didnt move. I then placed it into neutral and back into drive with no luck. After pulling off to the side of the road, I put the car in park, turned it off, then back on, and into drive. At this point, it drove like nothing ever went wrong. What the hell happened?? I really home this doesnt mean my tranny is going. Ive only had the ProCharger on the car for a month or so. Someone help!
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  2. 12-01-2009, 01:51 PM #2
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    Hemi31
    Hemi31 is offline You want it when???!!!!!!
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    You found tranny limp mode!.....lol.....if you can set your rev limiter lower do so by a couple hundred rpm....the motor bounced off the tranny limiter ....the engine limiter should be set lower.
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  3. 12-01-2009, 02:29 PM #3
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    cleary524
    cleary524 is offline Hemi Reg#1120
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    Eric,

    Say you use the Diablosport to set the TCM shift point to 6000 rpm and set the PCM rev limiter to 5800 rpm, will the car just bounce of the rev limiter and force a shift or will the engine go into a limp mode?

    Sorry, I hope I'm not hyjacking the thread.
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  4. 12-01-2009, 02:40 PM #4
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    Hemi31
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    pcm set lower than the shift will just bounce off the limiter.

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  5. 12-01-2009, 02:54 PM #5
    ajbarbato15
    ajbarbato15 is offline Blown 5.7
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    Did I cause any harm to any parts by doing so?? Thanks for the quick response!
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  6. 12-01-2009, 02:55 PM #6
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    Hemi31
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    no.....just scares you the first time.

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  7. 12-01-2009, 02:58 PM #7
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    and the 30th time for that matter

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  8. 12-01-2009, 03:18 PM #8
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    Quote Originally Posted by redfox0099 View Post
    and the 30th time for that matter
    x2
    First all motor LX in the 9's

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  9. 12-01-2009, 03:28 PM #9
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    Been there done that!! First time it happened to me I was at the Shindig. How embarrasing!!!


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  10. 12-01-2009, 03:45 PM #10
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    first time for me I just about messed my shorts!
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  11. 12-02-2009, 12:23 AM #11
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    cleary524
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    Quote Originally Posted by Hemi31 View Post
    no.....just scares you the first time.

    Posted via LXFMobile
    Quote Originally Posted by Redfox0099 View Post
    and the 30th time for that matter
    I was scared my first time too...and my 30th time (I think?)
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  12. 12-02-2009, 12:32 AM #12
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    aslcharger08
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    I remember the first time mine went into limp mode....only had the car for a week and it scared the crap out of me! That was on my previous SXT charger, hasnt happened on the HEMI, I know how to prevent it now lol.

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