Dlipp_
Newbie
Recently did a LT4 hot cam, with all the necessary parts etc. Thing fired right up first start, ran fine, no misfires. Fast forward a couple weeks, trying to figure out the hard start after the first start of the day issue.
Replaced trying to find the hard start:
(All GM parts, no junk)
IGM
Ignition Coil
Cap
Rotar
Plug wires
Fuel filter
Coolant temp
Crank sensor
New distributor last year
Plugs only 8ish months old, sat for 4 months with starting it once a week
And now I’m getting a rough idle along, random misfire as well
Fuel pressure reads 50-55 when pump primes, idles at 50, reads 50ish when turned off. Doesn’t go over 60 when cranking.
If I start the truck and give it throttle it’ll stay running, if i turn it off and try to turn it back on without priming the pump it’ll crank crank crank no start. Prime the pump it’ll try and start but stumble its way up, sometimes stall.
I’m hoping the misfire is related to the hard start. ***it’s been doing the hard start before I did the cam***
Replaced trying to find the hard start:
(All GM parts, no junk)
IGM
Ignition Coil
Cap
Rotar
Plug wires
Fuel filter
Coolant temp
Crank sensor
New distributor last year
Plugs only 8ish months old, sat for 4 months with starting it once a week
And now I’m getting a rough idle along, random misfire as well
Fuel pressure reads 50-55 when pump primes, idles at 50, reads 50ish when turned off. Doesn’t go over 60 when cranking.
If I start the truck and give it throttle it’ll stay running, if i turn it off and try to turn it back on without priming the pump it’ll crank crank crank no start. Prime the pump it’ll try and start but stumble its way up, sometimes stall.
I’m hoping the misfire is related to the hard start. ***it’s been doing the hard start before I did the cam***