hard up shift into 2nd


1987ss
07-03-2006, 02:22 AM
my buddie has a dts with the 4T80E tranny im unsure or year it has heads up night vision 2000 -03? but when tranny shifts in to 2nd gear its a really hard up shift its a hard grab... tranny does not slip and shifts fine into and out of any gear but 2nd.. anybody had same problem or know if it can be a vaccume related problem??

DFBonnett
07-03-2006, 07:09 AM
How many miles? Has the tranny fluid ever been changed? Sometimes those problems are caused by sticking or failing shift solenoids and the fluid change solves the problem. As a last shot before dropping the valve body you might try some Lucas TransFix. I'm not much of a believer in additives to alleviate a mechanical problem, but they do have their place.
FWIW
YMMV

1987ss
07-03-2006, 11:40 AM
the car has 77 k on it.. it has been flushed and it didnt change a thing.. thanks for the reply!!

maxwedge
07-03-2006, 02:32 PM
my buddie has a dts with the 4T80E tranny im unsure or year it has heads up night vision 2000 -03? but when tranny shifts in to 2nd gear its a really hard up shift its a hard grab... tranny does not slip and shifts fine into and out of any gear but 2nd.. anybody had same problem or know if it can be a vaccume related problem??
This should be scanned ( only a trans capable scanner will work) for possible problems with the shift solenoid or the pcs solenoid, as Df bonnet says, the adaptive shift percentages can point to the problem

1987ss
07-03-2006, 05:37 PM
kennedy transmission flushed it and scanned it thy said it didnt pull back any codes.. that tranny is expensive too he doesnt want to change it..

maxwedge
07-03-2006, 06:59 PM
kennedy transmission flushed it and scanned it thy said it didnt pull back any codes.. that tranny is expensive too he doesnt want to change it..
It is not a matter of codes, it is a matter of analyzing live data from the trans info.

1987ss
07-05-2006, 08:20 PM
what could u add to smooth it out a little so it can be traded in?

Add your comment to this topic!