transmission question - Ford Mustang Forum
 
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post #1 of 3 (permalink) Old 10-30-2012 Thread Starter
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transmission question

anyone know what could be causing my transmission to not shift when cold? when i first start up i sit there for a few minutes to let it warm up slightly. it still doesnt want to shift out of 2nd when i start going. it doesnt slip, it just winds up and when i let off and get back in the throttle it will finally shift. i did check the fluid today, it was on the add mark. i will test again tomorrow.
1989 ford mustang
2.3 turbo
a4ld trans

1989 2.3 Turbo Mustang, 88 T.C. ecm, large VAM, T.C. intercooler, stock A4LD, Daily Driver
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post #2 of 3 (permalink) Old 10-30-2012
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sounds like a sticky valve, do a fluid and filter change. and if you take it to a jiffy lube, make sure the change the filter in the price, most places suck the fluid out the fill tube and charge ya $75.

1987 ford mustang 2.3l turbo
mods: 1988 t-bird turbocoupe engine w/ IHI turbo
88 t/c ecm with large vane air meter
volvo front mount intercooler with explorer radiator
AOD to t-5 swap, 8.8 posi swap with 3:55 gears
ford racing non adjustable quadrant with firewall adjuster
GT front and rear sway bar
walbro 190 lph fuel pump
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post #3 of 3 (permalink) Old 10-31-2012
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You may have a hardened servo piston. When it is cold the rubber is too hard to flex and seal to the bore. When the rubber warms up it gets a little more flexible and can seal better. I did a post awhile back on the subject explaining how to check and replace it. I would assume a search would find it.

If its not broke, your not trying hard enough.
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