2003 6.8 Impala LS.Repaced serpentine belt.Security light on .Will turn over no start ?
Belt jammed between crank pulley and oil filter holder.Cause ?Cat trapped at
same area.Belt strip and was difficult to remove.Are there any sensors located
at that same area ? To remove I cut belt and pulled from the bottom.Now
Security message and car will crank but won`t start.Yes I replace serpentine
Crank sensor but that won't set the security system in shut down mode. It is possible that the sudden drop in output voltage could have activated the security, have you tried the security reset procedure in the owners manual? If that doesn't work then the system may have to be reflashed at the dealer to bring all systems back online and be reconises by the control computers.
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