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Discussion Starter #1
So here is the rundown :
04 2wd silverado 5.3 4l60-E
126k miles. Stock motor and tune

Just had the trans rebuilt and new convertor (5 miles)
No hard driving or over 3000rpm yet.

Proper install and fluid fill was done as well as cooler and line flush to remove contaminates.

So on the first drive it seems ok but the 1-2 shift seemed a bit high.. 2200-2400 under light accel.
2-3 and 3-4 seemed to shift a bit sluggish.
Noticed the sleep was working sometime and not others.

I have checked to see that all connections are good and they are, we have no extra parts or lines or wires hanging.

Is it possible that a bad ground could cause this Condition? I was told this but not too sure. If so... Where does the trans ground to and from?

Or does it point more to the vss?

I have no ses lights or strange noises. Have driven it a couple miles here and there to see if any change but no luck

Hope I provided all info needed. Any suggestions welcome
Dave
 

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Discussion Starter #2
Re: Installed new transmission /convertor and having slight shifting issue /speedo in

Well at least I am not alone in my thoughts of what to do next... NOT ONE PERSON here or on facebook pages has a clue. Not a good thing. :(
 
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