TowerLadder5
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1989 CF Mack Tower Ladder Back Firing
in Fire Apparatus
Posted
My fire department has 1989 CF Mack Tower Ladder that back fires when it is not completely warmed up. The truck originally would top out at 52mph so we had the fuel turned up. Top speed is now 62mph which is plenty fast enough however, it back fires when the engine is not completely warmed up. When we take off out of the station, the engine is fine but as we go through town, the second that we let off the accelerator to slow down and then depress the accelrator again, it back fires. Does anybody have a clue as to why it would be doing this? Any help is appreciated!