2000 f150 does not drive past 20 mph after transmission rebuilt

Asked by Jul 14, 2016 at 11:19 PM about the 2000 Ford F-150

Question type: Maintenance & Repair

I just had the transmission rebuilt and put in and
now my truck won't drive past 15-20 mph but the
speedometer quickly goes up to 100 mph and then
it cuts off the gas on the pedal... everytime I press
on the brake the needle quickly drops back down.
Could it be the transmission still having problems or
a sensor or even the cat converter? I need help

6 Answers

22,265

Your catalytic converter has nothing to do with your speedo. Have your codes pulled. The trans and the speedo use the vehicle speed sensor, if it reads erratic then it won't function properly. It may need changed. Some times it's on the rear diff and sometimes it's on the rear of the trans.

I changed the VSS and the speedometer is still not working properly, I'm going to take the transmission back to the shop and see if the find a error

So the transmission is fine and I changes the VSS I think it may be the computer if the truck its giving mixed signal

Is there a way to reset or reprogram the trucks computer

Did you ever find a solution? Thanks

HELP... TRANS SWAP NEED OSS ???? FROM VSS... help i to had a 2002 f150 4r70w put 2004 4r704 was late model the 2002 has a oss sensor with 6 holes for sensing the 2004 has a vss sensor with 32 bars for sensing the 2002 has the output shaft cut for the mechanical gear however the 2004 does not have the splines on the output shaft.... i can not change computer because totally different wire harness and i do not think the dash adjust will compensate as much ??? can i get VSS on differential????d4dusty@gmail.com

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