Re: 700R4 build thread.
This is for GMCdeadhead, But figured it can help others with a similar problem.
His 700R4 is locking on top of 2nd gear, This is usually because the TCC solenoid is getting power & ground at all times, The Converter apply valve gets its oil from 2nd gear oil.....That is why it will lock in second & stay locked up 'til the trans downshifts to 1st gear (2nd gear oil is present in 2nd, 3rd & 4th)
He has a 2 pole 4th gear pressure switch, Here are some diagrams on how to wire it correctly.
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