Quote:
Originally Posted by Jeremy5848
The only way "ALDA adjustment" can affect shifting is by affecting the vacuum to the transmission. Since "ALDA adjustment" does not normally affect vacuum, it probably means that there is a check valve or other component that is damaged or leaking.
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i understand what you are saying. when i was replacing the "stop unit" a few of the hard lines cracked just by moving things and working around the lines. i replaced 2 or 3 of the bad plastic vacuum hoses by pulling them out of the sheath and replacing the whole line with new (for some reason it was only the clear or milky clear ones that were brittle). i have also replaced some of the rubber connectors since i have owned the car and they should all be good. i will look them over again. i see on the vacuum diagram that there is a line off the ALDA rubber Y that goes the "vacuum amplifier switch-over valve automatic transmission", so this line may be a suspect.
i did a bit of searching on this forum and others have commented on shifting improvements after adjusting the ALDA.