brought it to my mechanic and he said... i have heard that on a few L67'* before and said it is usually vaccum related. But he didnt have his scanner, he lent it out.
So we left, and got about 5 miles down the road and got a service engine code. Went straight to my uncles (mechanic). Throw it on the code scanner, came back evap. He listened and said it was also vaccum. We checked the lines and found the one from the TB to evap module was split. Fixed it, reset code. Drove it, came back and the noise seems to be gone. Well i wouldnt say completely gone but very very low in volume. Brought it back to my mechanic and he said to bring it over tomorrow, he would check the rest of the vaccum and put it on the scanner.
So for now, everything looks good.
1995 Pontiac Bonneville SLE (the black one)
Old NA Setup with ER Rockers
PB 15.132@ 92.942 PB 60' 2.269 PB 1/8th 9.7000
1995 Pontiac Bonneville SE (the white one)
Up and Running (Thank you Bill for all your help)
GT1 cam, 105 springs, ect, Ported LIM, Powerlog V2, CAI, Waterpump underdrive pulley, A/C Delete, cooling mods, yea the works
In Modding heaven with ZZPerformance