THase89
Newbie
96 C3500 w/ 454 Vortec
Problem Summary: Randomly completely turns off ether driving or idling but would restart immediately. Truck still has power. Did this for a couple months. Now truck will not start at all. No spark at the plugs.
New parts 6 months ago:
Distributor, rotor and cap.
ICM
Coil
AC Delco plug and wires
New parts trying to diagnose issue:
Coil, ICM and Crank sensor.
Diagnostic activity:
12v power to ICM, Crank sensor and coil good.
Ground wire to ICM good. ICM is getting signal from PCM.
Coil is getting signal from ICM. Dash command app is showing rpm when cranking over.
Coil wire has continuity. Rotor and cap also tested good.
Confirmed no spark at plug. Also checked fuel pressure to be at ~55-60 during cranking.
Truck shows zero signs of firing. What am I missing?
Problem Summary: Randomly completely turns off ether driving or idling but would restart immediately. Truck still has power. Did this for a couple months. Now truck will not start at all. No spark at the plugs.
New parts 6 months ago:
Distributor, rotor and cap.
ICM
Coil
AC Delco plug and wires
New parts trying to diagnose issue:
Coil, ICM and Crank sensor.
Diagnostic activity:
12v power to ICM, Crank sensor and coil good.
Ground wire to ICM good. ICM is getting signal from PCM.
Coil is getting signal from ICM. Dash command app is showing rpm when cranking over.
Coil wire has continuity. Rotor and cap also tested good.
Confirmed no spark at plug. Also checked fuel pressure to be at ~55-60 during cranking.
Truck shows zero signs of firing. What am I missing?