Fri, May 6th, 2011, 10:06 AM
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Double Whopper
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Join Date: Feb 2011
Location: The land of sky blue water
Posts: 45
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Quote:
Originally Posted by TwinTurbo
Have you crawled under and looked at the transmission? I put one in my truck that came out of a friends, that had been rebuilt, it had a tag on it from the company and I was then able to call them and find out what they do in a typical rebuild. Just a thought.  |
Not closely, I'll give it a good look over the weekend. 
Quote:
Originally Posted by cleatus12r
wood4heat, what is your PCM code? Longshot270 had some really great information there, but as far as the 4R100 is concerned it is a little off....
Under normal acceleration, the TCC is commanded to apply in 3rd gear at some point (Depending on PCM code, which is why I asked for it).
If you can truly FEEL the 1-2 and 2-3 upshifts under normal acceleration, it's likely you have something done to the transmission. Typically, with stock programming and a stock transmission, the 1-2 and 2-3 upshifts SLIDE into gear and you really don't notice much of an RPM change.
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I'll look for the PCM code as well. You can definentely feel the 1-2 and 2-3 shifts under normal driving, the next shift slides in as you described.
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Last edited by wood4heat; Fri, May 6th, 2011 at 10:40 AM.
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