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!