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P1870 TCC Valve

This is a discussion on P1870 TCC Valve within the Transmission Tuning. forums, part of the Performance category; Im useing A74741Q fitzall pack and It dosen't fit. does it need to be reamed out. I look'd at some ...

  1. #1
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    P1870 TCC Valve


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    Im useing A74741Q fitzall pack and It dosen't fit. does it need to be reamed out. I look'd at some other posts and it made no mention that it needed to be done thanks for the help almost done.... This is for po code 1870...
    Last edited by eagle98; 04-14-2012 at 08:00 AM.

  2. #2
    GMC RULZZ NEUMANNZZ's Avatar
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    Re: P1870 TCC Valve

    did you lube the orings?
    correct valvebody location?
    valvebody removed?
    what year transmission?
    Last edited by NEUMANNZZ; 04-16-2012 at 10:59 AM.
    O2 GMC RCSB 4.8L V8 AUTO 3.73's
    rebuilt/beefed up 4L60E(at 43,000miles)
    Matching Ninja 500r


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    Re: P1870 TCC Valve

    yes lubed, yes correct valve body location, yes valve body removed, 1998 4l60e. I got it to work, it just needed more force then i wanted to use. I needed to tap it lightly and it went in. (this thread sounds a little weird sorry) thanks for the reply.

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