So I have a Pro-Pulse (megatech) T-100 that is acting funny - it won't accelerate at high rates (it jerks and stops), and when it does get up to speed and I let off, it locks the wheels. Anybody know what's causing that or how I can find out?

My only other truck is a Losi Mini-DT, which has a combined reciever and ESC, and the nearest hobby shop is almost an hour drive away. Help please? Thanks!

The Propulse is a fun little car when they are working right. I would suggest to check all of your radio settings first, someone turning the trims and/or end points too far can cause crazy problems like that.
If that does not work you should try to re-calibrate the ESC to the radio. I have to assume everything mechanically is sound and it is not binding or broken parts causing the issue.

Okay, so this is a liiittle embarrassing, but I don't know how to recalibrate the ESC to the radio. I tried looking it up, couldn't find it, emailed megatech, they're all "send it in! with all your money!". sooo, yeah. couldn't find any obvious buttons. Any ideas on how to do that?

(PS: the trims were waaay out. I had one dogbone fall out, so it was 3-wheel drive for a while :P )

(PPS: There's nothing mechanically wrong, and a new reciever and esc don't help.)