we have a 4l60 trans with a 1-2 hard upshift(bangs). that is the only time you feel the bang shift is doing the 1 -2 upshift - you do not feel it in any other gear or on downshift. we serviced trans and installed new pan gasket and filter. there was no metal i...

FIX posted 3/7/2006

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle