having shifting proble only go to first and second in tip or auto. earlyer i lunch my car in tip at 10 psi and herd a big thud in the back. then the car juck alot wouldent go to 3rd 4th or 5th. dont no if i missend up the trans or if the computer is missed up and wount let it shift.

 

yup thuds are definitely never good....probably f'ed up the tranny....does it shift fine when not in tip???in reverse???

 

ok now it is fine shifting into the other gear but when giving it full throttal to 4.5-5g it shift really hard into 3rd gear. my car will jeark back really hard.