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Transmission wont shift into 3rd or 4th

This is a discussion on Transmission wont shift into 3rd or 4th within the Technical / Maintenance forums, part of the General Discussion category; I got a 1994 Chevy silverado 2wd 5.7L V8. It is equipped with the 4L60E Auto tranny. It has been ...

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    Transmission wont shift into 3rd or 4th


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    I got a 1994 Chevy silverado 2wd 5.7L V8. It is equipped with the 4L60E Auto tranny. It has been slipping in 3rd for a while but only briefly. A few days ago I stopped at a store and when I started driving, it shifted into first fine, then second fine also, but when it was supposed to shift into 3rd, it didnt, only the engine reved up. So i stopped and tried moving the gear selector to 3rd and overdrive and got nothing but the engine reving up. It shifts into reverse, first and second fine, but I have no 3rd or 4th gear. Im going to school for automotive but have not made it to transmissions yet. Im leaning towards rebuilding the tranny with the help of my instructor, but wanted to know what the problem could be before i spend a lot rebuilding it. Could someone please help me with this issue and tell me what it might be
    Last edited by Georgiaboy6985; 01-27-2010 at 04:37 PM.

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    bikes cars trucks women vic_V8's Avatar
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    Re: Transmission wont shift into 3rd or 4th

    are you sure it isn't hitting 1st skipping 2nd and hitting 3rd? if so, replace shift selinoids and reset computer
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    GMC RULZZ NEUMANNZZ's Avatar
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    Re: Transmission wont shift into 3rd or 4th

    3-4 clutches burnt. rebuild time.
    O2 GMC RCSB 4.8L V8 AUTO 3.73's
    rebuilt/beefed up 4L60E(at 43,000miles)
    Matching Ninja 500r


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    Supporting Member brutal's Avatar
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    Re: Transmission wont shift into 3rd or 4th

    the 3-4 clutch packs are gone.

    1997 K1500 Built vortec 355
    transbuilderguy built 4L65E, yank, 14 bolt

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    Supporting Member brutal's Avatar
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    Re: Transmission wont shift into 3rd or 4th

    Quote Originally Posted by NEUMANNZZ View Post
    3-4 clutches burnt. rebuild time.
    beat me to it

    1997 K1500 Built vortec 355
    transbuilderguy built 4L65E, yank, 14 bolt

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    Re: Transmission wont shift into 3rd or 4th

    Vic_V8, yeah Im positive that its shifting into 1st and 2nd fine and its not shifting into 3rd or 4th, even when i manually move the selector from park to D or overdrive, i get nothing almost as if its in neutral. and if it was the solenoids, which ones would i need to replace and how do I reset the computer?

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    GMC RULZZ NEUMANNZZ's Avatar
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    Re: Transmission wont shift into 3rd or 4th

    when you do the rebuild replace all the selenoids and the wiring harness, your symptoms are the result of the 3-4 clutches worn out, not the selenoids.
    ragmc likes this.
    O2 GMC RCSB 4.8L V8 AUTO 3.73's
    rebuilt/beefed up 4L60E(at 43,000miles)
    Matching Ninja 500r


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    rockin baby moons 96camaro's Avatar
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    Re: Transmission wont shift into 3rd or 4th

    clutches are burnt X3

 

 

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