6K views · 127 reactions | GMC/Chevy truck “spits and sputters” according to customer, especially after warmed up. Go through a couple quick checks then turn towards the common problem for many of these trucks that causes constant or intermittent performance issues, the distributor cap and rotor. Looks like someone took a stab at it before me. 1996 GMC C3500 Sierra 5.7L misfire backfire fix | Carl's Garage | Facebook