got no ac , a new cabin filter ,heater cores still good and all seals look good to me witch was the first i looked at cause the temp diff inside to out will do this ,but it's not that , seen another contour do it to.
cant figure this one out


96 2.0 mtx
kenwood deck & amp,mtx cr, boston acustics,12inch phonix gold
45sq feet vibration dampning/sound proofing
15%tint
98 rims ,fire gta's
factory tack install
k&n ,intake res removed
accle thunder , ngk
custom exsaust
redline/fm , waterwetter , sy oil& stp
svt mounts
jet chip