Thread: Rebuilt Trans in February - 3rd to 4th Gear Problems w hardened installed

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  1. #1 Re: ECM vs. TCM vs. PCM & Flashes 
    GT Level Member SliceTheRice's Avatar
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    Crap, that's what I was afraid of. A reflash is about $100 (had to do it once before on a different vehicle).

    Yeah, that's what went out in Feb. 4th gear clutch shaft finally pooped after about a year and a half of showing problem signs (I tried to milk it for all I could before it finally went). They showed me the clutch shaft and all the splines were worn completely smooth. They replaced it with a hardened clutch shaft.

    So if a reflash has to be done, should I just go have it reflashed at the dealership and then have it reflashed with the DHP tune? I'm really unsure of how the programming works and if there is even a point to having the dealer flash it if I'm just going to put the DHP tune on it again. I don't know if anything the dealer does will remain if a DHP tune is done afterward, does that make sense? I'm kinda lost on what to do next. I suppose I could demod the car and wouldn't have to worry about it, but that would suck when I've had my mods for over a year now and they've not given me an ounce of trouble.

    P.S. FoSho, your car is impressive. Props.
    Last edited by SliceTheRice; 08-29-2011 at 02:36 PM.

    2000 Pontiac Grand Prix GTP
    (3.4 MPS, DHP 1.0 tune, ZZP Plog & 3" DP, 2.5" cat-back exhaust, resonator delete, AL104 plugs, 180* T-stat, Falken Ziex 245/45/18 tires)
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  2. #2 Re: ECM vs. TCM vs. PCM & Flashes 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
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    Your best bet is to find a local tuner that has powrtuner. If not someone with hptuners, have to buy credits with that though. If they flash a stock file onto the pcm and it doesn't resolve anything, let the trans shop know that. It may be their doing or a TC issue, I would post up a video in the trans section of what it's doing or send it to dave @ TEP to see if someone can offer more insight. If it actually is the shops doing, then they may want you to go to the dealer and have them flash it regardless, but i wouldn't do it unless they say they will pay for it if the problem is still there.

    If that isn't working, I would find another compatible junkyard pcm and install that, if anything you can still keep the dhp 1.0 pcm or have a spare to send to reptile or someone to flash.
    2001 GTP PT61 Turbo, E85, Stock Motor
    2011 Chevy Cruze MT6 1.4L Turbo
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