Manager Forum

Morning gentlemen, have an issue with my personal car.

1st to 2nd shift is very hard and delayed. All other gears shift perfect. Car has 150k and very well maintained, trans flushed twice and filter at 100k. I read a tsb on replacing 1-2 accumulator. Factory has a alum piston with o-ring seals. Fix is to replace with steel piston with molded seals. I thought for sure it would be the fix (described symptom to a tee in tsb). Replaced accumulator yesterday and made absolutely NO difference. Are there any trany guys or anyone else for that matter that can shed some light on my issue with car? 97 crown vic lx 4.6 ...... no comp codes and everything seems normal looking thru Modis.

Any help would be greatly appreciated. Bob in sc. Thanks in advance

Got me stumped on that one, wish I had some insight for you.

I found that a gallon of jet fuel and a match worked better than a gallon of gas and a match. BOOM

If it were a bit older i would say that the pressure cable had broken at the throttle but it isn't that vintage. With the scanner attached you can see if it's commanding shifts. If it isn't commanding them i would look and see if the speedo is jumping. If yes look at the vss. I believe a bad tps will cause a transmission issue. When it's running pull out the tranny dipstick and see if there are Any air bubbles on it. If so i would look at the valve body for an air leak.

Turned out to be the transmission itself, I guess. Replaced with a 50k unit and shifts just like factory.