Need Help ASAP

[psd350]

my 1998 ford f250 light duty truck (4x4-auto) had few problems with it and i need your help to solve what might be wrong now.. i put truck in drive and hit gas and get up to around 3k rpms and the truck starts jerking and bucking and u can hear a thump thunp thump i let of gas and it wont do it when it bucks and jerks the rpms drop while my foot is still on gas. i can put the truck in 2nd (auto) and it will do fine i took to shop and they said it could be torque converter? is this correct and how much would this run me? need your help

[CHUCK]

bump up for ya...

[astaindsoul5446]

could be torque converter. could be solenoid issue. Does your OD light flash at all when this happens ? if it does try and pay attention to the flashes the will be in a sequence .
5 flashes and a pause is 5 so you may get something like
flashflash pause flashflashflash pause flashflashflashflash pause flashflashflashflashflash
this would be code # 2345
etc
A good trans shop or manual will tell you this trans code. will get your started.
also a good trans shop should be able to hook to the TCU(transmission control Unit) and tell you weither it is a solenoid malfunction or torque converter.
But from the info that you gave it could be either or.
Could be the torque converter is trying to lock and cant or shouldnt be locking at that time. Or a solenoid is stuck shut, or is stuck open while the one solenoid is trying to open and valve body pressure is dropping and the TCU has a freak out moment. or could be a bad solenoid pressure sensor.
take it to the tranny shop.

[psd350]

thanks and also i dnt know if this has anything to do with it but ive had my service engine and oil light flash periodically while driving and they shop i took it to said that it was trying to lock up but i just wanted to make sure and yes the over drive off button works it shows up on the guages when engaged and stay until press button again how much do you think they will charge to change a torque converter i looked up oem part and it was 250 .

[astaindsoul5446]

its probably all together a 4 to 5 hour job. depends on the shop, skill, and the biggest one AMBITION. I dont know what rate is by you but by me figure 50 an hour. and thats usually cheap. but i dont really know cause i do my own work. every shop is different some charge more if you bring your own parts cause they dont get the mark up on parts.
so. . . . . 250 - 375 in labor.. . . . then parts . . . .
probably . . . . (sit down) 700-800
hence why i do everything my self.