Tranny help
Thread Starter
Launching!
Joined: Jun 2006
Posts: 225
Likes: 9
From: Hudson Valley NY
Tranny help This is not an LS based question,But what better place to ask 
This is my sister's S10 Blazer w/126K miles.Cruising in between 50 & 60mph its shifting between 3rd & overdrive with my foot slightly on the gas pedal.All other gears shift fine and it does not appear to be slipping,What would cause that................Paul
This is my sister's S10 Blazer w/126K miles.Cruising in between 50 & 60mph its shifting between 3rd & overdrive with my foot slightly on the gas pedal.All other gears shift fine and it does not appear to be slipping,What would cause that................Paul 
Yes what year is the truck. Is it a 4l60e? And is it shifting 3-4 or is it possibly going in and out of lockup?
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My first thought would be the TPS but you should scan it and also look at the data stream to see what its actually being comanded to do
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Thread Starter
Launching!
Joined: Jun 2006
Posts: 225
Likes: 9
From: Hudson Valley NY
Originally Posted by performabuilt
My first thought would be the TPS but you should scan it and also look at the data stream to see what its actually being comanded to do