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1996 Legacy Outback-- AT jolts from 1st to 2nd
Posted 17 May 2009 - 06:11 PM
Posted 17 May 2009 - 08:46 PM
do all of your tires match? meaning the size, tread depth, and tire pressure properly set?
check the fluid level, color and smell. have someone familiar with the color and smell of ATF check that for you to see if it's old or burnt. follow the directions in the owners manual to check the level.
it probably needs the transmission fluid changed, but i can't say whether that will fix your problem or now. have it flushed and filled with fresh ATF. a drain and fill isn't enough...you need at least 3 of those to actually get a significant amount of fluid out based on the design of an AT.
for most folks just paying a shop $70 to flush it is the best bet.
the only problem is i can't gaurantee it will fix anything, but at this point it needs to be done due to age and mileage.
Posted 17 May 2009 - 10:25 PM
Posted 18 May 2009 - 07:24 AM
does it 'jolt' when the trans is warm and you are just driving away from a stop?
the delay and surge is worrisome, is that in the 1-2 shift or the 2-3 shift?
a 2-3 shift problem can be caused by a dirty tps? i think.
changing the fluid can't hurt and is good insurance for the long haul, but if there is internal damage or exsessive wear, it may not help.
Posted 18 May 2009 - 07:42 AM
Posted 18 May 2009 - 11:53 AM
This LINK and this LINK describe and show the 4EAT 'dropping resistor' as well as discusses the Duty Solenoids. Looks like a Duty A or B could also cause the issue as they control shifting?
Edited by wtdash, 18 May 2009 - 12:29 PM.
Posted 18 May 2009 - 01:00 PM
Posted 18 May 2009 - 10:13 PM
Soobys are known for hard 1-2 shifts, it can be startling at times. But a hard shift is always vetter then a long slipping shift.
Change the fluid and you should be fine.
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