So I bought a 4.3 that had a bad engine, replaced with a GM 4.3 reman. Also replaced the fuel injection spider with the new style with 6 real injectors.
Replaced the plastic distributor with a new aftermarket aluminum one.
Truck runs great, but has an intermittent miss. Its like you shut the key off for a split second, the truck bucks (stick shift) and then runs fine again.
So far I have replaced:
Cap and rotor (new AC Delco)
distributor cam sensor (swapped one from the old distributor)
New AC Delco iridium plugs (when I did the engine swap)
Napa belden plug wires
crank position sensor
ignition coil (new AC Delco)
throttle position sensor (AC Delco)
The only other thing I can think to change is the ignition module next to the coil, they are $100, so I am looking for Ideas before I spend more money.
I also have a new fuel pump laying around, waiting for a quiet day to change that out. The old pump is very noisy.
It cuts out so suddenly and comes back so quickly it seems unlikely its the pump.
Thanks in advance!
Replaced the plastic distributor with a new aftermarket aluminum one.
Truck runs great, but has an intermittent miss. Its like you shut the key off for a split second, the truck bucks (stick shift) and then runs fine again.
So far I have replaced:
Cap and rotor (new AC Delco)
distributor cam sensor (swapped one from the old distributor)
New AC Delco iridium plugs (when I did the engine swap)
Napa belden plug wires
crank position sensor
ignition coil (new AC Delco)
throttle position sensor (AC Delco)
The only other thing I can think to change is the ignition module next to the coil, they are $100, so I am looking for Ideas before I spend more money.
I also have a new fuel pump laying around, waiting for a quiet day to change that out. The old pump is very noisy.
It cuts out so suddenly and comes back so quickly it seems unlikely its the pump.
Thanks in advance!
