I have the same exact problem with my Contour.
I only have 26k miles on this thing and its burping just like you say. My a/c is off and its jumping every 5-10 seconds.
Its much more noticable at higher rpms but happens all the time.
its really pissing me off and i need some suggestions too.
Please Please Please help.


98.5 black CSVT
KKM intake,
BAT Aluminum pipe
Tint 5%
door dings removed
mesh grills