i have an 89 300ce .i recently had my transmission fluid & filter changed
now when i go to accelerate the car bogs down ,then kind of comes out
of it (gets erratic) It idles fine,when i back up or move forward in driveway it feels fine. a friend of mine told me to leave it in 1st gear & accelerate.
It feels strong. but, when i come up to 2nd or drive I get the problem again.

Sounds unrelated to the tranny to me- check ignition and fuel.

That's why i drove it in low gear. The tranny is not shifting in low gear. I took it up the block & it drove fine.If it were a fuel problem it would've given me a problem.

it may have a vacuum line off. look at the shift modulator.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

thanks,i'll let you know

checked vaccum line at the transmission modulator ,it looks good.
it seems like when you first start it,the car moves forward fine
than it acts up . it's hard to trace the line uo from trans moulator to
engine compartment.Where do you find the vaccum modulator adjustment

everybody is reading.can somebody offer an answer
thanks

do i have a bowden cable ,if so where would i find it

I think i found the source of my hesitation. I found a big hole in my center muffler.Can somone confirm that this might be related to my problem.