1993 Cadillac deville sedan 1986 cadillac deville RIP
my first replacement core went out at 96k and my second died at 100500 and the mechanic told me that it could be a defect in the core (ac delco) because all his clients are coming back wih bad cores. he should me half of the bottom right side had coolant and the other didn't . well the good news i paid nothing still under warranty however when this one when out it went fast with a bang and i had a scond exhaust on my dash board. any thoughts on defective cores.