Problems

[purplenut]

This problem is with my trf501x,but its mostly electric.
Ok trans charged,batterys charged,all pluged in hold car off groung put on power goes like stink,altho some times just cuts out steering goes one way whole thing freezes for 3 seconds,But when on groung hardly no power at all and when power does kick in i loose radio contact and again stops for 4 seconds,realy doing m head in.
Electricts are as follows
speedo gtb 2.4 spectrum
futaba 2.4 trans
5.5 light motor
It worked fine few months back but had to strip it to put a new chassis on now this problem.
Hope some one can poss give some pointers.
Thanks.