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Originally Posted by JBS
Just had reman. trans installed and I am trying to adjust the shift point from 1st to 2nd gear at full throttle. My old trans. would shift around 6200 RPM. Now it shifts at 5000 RPM unless I hold the shifter in 2nd. Also, once I am rolling, it will not downshift from 2nd to 1st no matter what. Not good for those "whoops!!!" situations when I need to get up to speed fast. I tried tightening the throttle pressure cable but this only seems to have an effect on 2nd to 3rd shifts. Currently it goes from 2nd to 3rd at 6400 RPM. I have also noticed that when I place the car in drive, it requires more throttle than with the old trans. to get moving. It scared me at one point when I gave it about half throttle from a dead stop and it felt as though it was slipping a little then fully engaged.
Any thoughts or recommendations are greatly appreciated.
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Well I am not an expert on this but there are two things to adjust that I know of. 1. the bowden cable will allow you to change how hard you have to press on the accelerator to keep it from downshifting. If you press the accelerator to the floor the car should shift at redline or a little after in all gears. If the car is shifting too soon you need to loosen the cable. If it is shifting to late you need to tighten it. 2. If you face the back of the car there is a manifold pressure adjustment switch under a cap that you can turn so that it shifts under less/more vacuum pressure. I can't remember which way is which. Do a search on those two items and you should find better info.
You may have to have a mechanic hook it up to a computer to see if anything is faulty. There may be things that you can adjust with diagnostic computer but I really don't think so with this early a model.