Just me Driving my 1986 GMC Blue Bird down the street and back. Valves are rattling probably due to bad gas.
Spec: 72 passenger, 1986 GMC BlueBird, V8 366ci Gas engine, and Allison AT-540 Automatic transmission, air brakes of course.
Edit: The valves were rattling because I didn't have the PVC valve plugged in. Plugged it back in and now she's quiet.
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