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chevelle327 11-21-2002 05:57 PM

Auto shifting to quick!
I have a 69 chevelle with a th350, when i have it in drive(3rd) and floor it it shifts way to fast out of first, it doesnt go past 3 grand. it takes off then shifts and the rpms arent up enough and so 2nd starts to early and it slows down then starts gainin speed. but if i have it in 2nd it will go to 4 or 5 grand in first then shift. does anyone have a clue what is the problem. is it my kick down or something in my transmission?

racer56 11-21-2002 06:44 PM

Have you looked at your govenor assembly? I would say that is a good place to start. Did it happen out of the blue? 11-22-2002 03:31 AM

sounds like your throttle pressure cable is not adjusted right,

chevelle327 11-22-2002 06:41 AM

its been goin on for awhile. but ill check those things.

Dave E Shank 11-23-2002 03:32 PM

Hey Chevelle: I had that same problem on a TH 350 that I had put a shift kit in. As soon as you would take off it would up shift before building RPM. It would also hunt when driving about thirty MPH. I found out that when we installed the shift kit on of the check balls had moved into another circuit and was blocking fluid flow. I bought a Transco kit from Sumitt Racing and it cured the problem. GOOD LUCK DAVE SHANK

badA31 11-24-2002 10:54 AM

327, Do you have an adjustable vaccuum modulator on your trans? You will get an early shift if the adjustment is wrong.

chevelle327 11-25-2002 06:57 AM

i dont know about that vacuum modulator. but ill try what shank said because it does have a shift kit. i think i found a transco kit, but its called transgo is this right? it seems like it is another shift kit that id have to put in.

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