North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
If it's doing what I think your saying (moving air in and out of the exhaust pipe) yes it's got a valve or valves out of adjustment and /or a problem with the valve train.the exhaust pipe to suck and blow when trying start. Valves?