Yet another tranny diagnostic request
Feb 13, 2006 | 09:13 PM
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From: Orlando, FL
Yet another tranny diagnostic request
I recently changed my tranny pan/filter/fluid. See HERE
Everything checked out pretty good and I put it all back together and have been driving it for over a week with no issues. This morning I go to pull out into traffic (after the truck was at operating temp and the tranny needle was just beginning to move, it was 30* this morning) anyway...I gave it about 25% or so throttle and I felt a vibration like pulse modulation and I barely moved. After a split second it fully engaged and I took off as expected. My first thought was cold tranny/thick fluid something in the tranny didn't like that. But on the way home this afternoon it sort of did it again. Almost felt like it did a 1-2 shift. The converter flashed a few hundred rpm and then I moved. Now, the normal 1-2 and 2-3 up and down shifts are crisp and fine it's only when in first from a stop or low throttle does it do this. Once it engages I can nail it and it wont slip at all. I did a manual down shift to see if it would slip going down, went from 2 to 1 and almost slammed my head into the steering wheel
It definitely grabbed, guess I was going a little too fast for a 1st gear drop. Could this pulse width modulation acting up or are my clutch packs starting their way to garbage can? Experts, go! I will check back in 10 minutes and expect a comprehensive answer and solution.
Everything checked out pretty good and I put it all back together and have been driving it for over a week with no issues. This morning I go to pull out into traffic (after the truck was at operating temp and the tranny needle was just beginning to move, it was 30* this morning) anyway...I gave it about 25% or so throttle and I felt a vibration like pulse modulation and I barely moved. After a split second it fully engaged and I took off as expected. My first thought was cold tranny/thick fluid something in the tranny didn't like that. But on the way home this afternoon it sort of did it again. Almost felt like it did a 1-2 shift. The converter flashed a few hundred rpm and then I moved. Now, the normal 1-2 and 2-3 up and down shifts are crisp and fine it's only when in first from a stop or low throttle does it do this. Once it engages I can nail it and it wont slip at all. I did a manual down shift to see if it would slip going down, went from 2 to 1 and almost slammed my head into the steering wheel
It definitely grabbed, guess I was going a little too fast for a 1st gear drop. Could this pulse width modulation acting up or are my clutch packs starting their way to garbage can? Experts, go! I will check back in 10 minutes and expect a comprehensive answer and solution.
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