I went back out and there does appear to be a quiet rattle. I listened to the engine for 10 minutes at the dealer and it didn't make a bad noise.
Heres a video...don't know if you can pick the sound out at all.
All I know is that whent the HB when on the '89, it was turning heads on the street. It was LOUD. This is not.
The belt looks ok, but it is snowing so I will oil them when it stops. Could a coupler make that buzzing/grinding sound as well? And is my boost reading normal, or is it kind of low? I can't get it past 3/4...
1996 Pontiac Bonneville SSEi - 190, 000KM - L67 3800 - 2.93 Final Gear Ratio
- Rebuilt 4T60-HD w/transgo shift kit, 3.4" ZZP MPS, Oversized tensioner, NGK TR6'* @0.55", Belden Premiums, Magnaflow F-Body Muffler, Magnaflow Hi-Flow Cat. & resonator delete, CAI W/K&N RX-4750, Drilled 180 T-stat, Aeroforce Scan Gauge, Pioneer DEH-P7800MP, MTX Thunder Dome TDX6902 6x9'* on Rear Deck. MB Quart 6.5 up front. MTX 12" Sledgehammer w/custom ported box, 35% Tint all the way around.
1989 Pontiac Bonneville SSE
- 222, 000KM - LN3 3800 - 2.97 Final Gear Ratio - RETIRED