my egr wont stop running so my truck wont idle i had to diconnect vacuum,what could cause that i heard it could be a sol switch or something.anyway if you know please dont be scared to help,thanks.also when im start going she jumps then goes then sputters then she starts going again,what the heck is that about,caberator,timing,well thats another problem i cany adjust the timing on my motor(351w).

What year truck?

for some reason you have manifold vacuum going to your egr. try t'ing off a vacuum line that only has it during high rpms.