Pontiac Problems? Ask a Mechanic for Answers ASAP
Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.
hey how are you
1- this is hard since i can not hear it
but if the cv axle shaft Nut got loose and they had to pull the axles to do the trasnmission rebuild that could be causing the clunk and will be more eveident on the stoping more since it will move and causing the cliunk .
2- have you had it lifted on ca rlift and inpect the under carraiage ,situation like this you need a visual inspection,but based on what you mentioned that is a big possibility and i seen it happened if the axle shaft nut was not torqued to specs,but testing will be needed
3- any suspension part coul do that ,lower & upper ball joint ,links ,etc
4- the transmission itself that was rebuild needs also inpected if it happened after ,in case related
Please let me know
ASE Certified Technician
With a proper GM scanner he can retrieve pending or history fault codes ?
is there any warning light on dash ,check engine light on , abs light ,tcs light etc?
it could be engine related but we need more evidence
from what you describing ,if really the brakes locked up then it could be an ABS issue .
there is no know issue from what you describing , did you have that problem prior to the trans rebuild or it happened as soon as you got it back ,if it did
big chance it has something to do with he repairs could be not the trans but of he missed a ground wire loose and causing this intermittent issue
Please let me know if you need anything else