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Old 09-24-2020, 02:14 PM   #9
ewoody625
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Join Date: Jan 2009
Location: valparaiso,in
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Re: 4L60E Trans only shifts 2 and 3

Quote:
Originally Posted by ls1nova71 View Post
Thats an awful lot of codes for something like one sensor to have gone bad all of a sudden. Being this is a swap, I am still leaning toward a wiring issue. Did you check for power at the big round plug on the transmission?
I have 10.6v at the pink wire on the big round trans plug. That is what I am currently tracing back to see where my voltage drop is coming from. I do not have the tcc wire hooked up, I was told that is optional. To clarify, the tcc gets power from the brake switch? Or it goes to the brake switch and to a power source? I'm at the end of my rope on this. Ready to pull it all out and put my 350 back in. I appreciate the information.
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