1997 CHEVROLET K3500 7.4L 454 NO START NO SPARK NO TACHOMETER
WE HAVE TRIED EVERYTHING WE CAN THINK OF. WE'VE REPLACED THE PCM, ICM, DISTRIBUTOR CAP AND ROTOR, WE'VE CHECKED FOR GOOD GROUNDS, TRUCK HAS NO SPARK, NO TACHOMETER, AND WE ARE AT A LOSS. ARE WE MISSING SOMETHING?
