I disconnected the aftermarket TCC switch harness and it seems to have taken care of the erratic shift problem but, I read an article last night about "setting" the TV cable. Now, the 2004R has been transplanted in a 78' Chevy truck and a bracket was made for the TV cable; How do you know for sure where the starting point is for enough tension without pulling the pan to visually see contact? When I pull the end of the TV cable near the carb, I can hear a slight metallic click, as if the lever is making contact in the trans but, I can also pull the cable another 1/2 inch or so with mild tension then it becomes more difficult; at this point it feels like it's actually pushing the TV valve and spring. Lost! Please help. Also, there is a delay going into first, it has a 2800 stall. Could this cause the delay?
John,
The best way to tell if the TV cable is adjusted correctly without dropping the pan is by insatalling a pressure gauge on the port just above the shift lever shaft. Look for a 2 - 4 psi. increase from the cable disconnected and connected up @idle. Here's a few more TV adjustment links. > Bowtie Overdrives | TV Made EZ GM TV Cable Adjustment Instructions
Good Info here, TV 101>> Bowtie Overdrives | TV Made EZ
The higher stall shouldn't cause a delay, it will soften the gear engagement feel. Low pressure may cause a delay.
Todd
The bracket was too short and the aftermarket lock-up harness kept the convertor engaged intermittently. Now the trans is slipping and needs new clutches. Should be okay this time with the other two problems corrected. thanks for everyones input. John.