LC9 5.3L Swap - Long Crank When Hot Issue
02-26-2019, 12:33 AM
#1
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LC9 5.3L Swap - Long Crank When Hot Issue Hey Guys,
Have an issue with the LC9 truck motor swap - experiencing a LOOOONNNG delay in cranking before it catches.
Ive checked fuel pressure while cranking and seems to be right at 58psi - so I don’t think it’s the pump or the regulator.
55k miles - sourced from a 2012 Chevy Silverado
Only code I’m getting is p0305 - cylinder number 5 misfire. May be unrelated to the crank issue. Swapped coils 5 and 7 - no change. Changed plugs and wires- no change.
The issue is driving me crazy... if anyone has any feedback would be apprciated.
Youtube video link
Have an issue with the LC9 truck motor swap - experiencing a LOOOONNNG delay in cranking before it catches.
Ive checked fuel pressure while cranking and seems to be right at 58psi - so I don’t think it’s the pump or the regulator.
55k miles - sourced from a 2012 Chevy Silverado
Only code I’m getting is p0305 - cylinder number 5 misfire. May be unrelated to the crank issue. Swapped coils 5 and 7 - no change. Changed plugs and wires- no change.
The issue is driving me crazy... if anyone has any feedback would be apprciated.
Youtube video link
02-27-2019, 07:33 PM
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Hi John: I'm running the factory LC9 truck manifold - turned 180 degrees around. Believe the sensor on the LC9's are built into the MAF - which is mounted on 90 degree elbow right off the T-body.
02-28-2019, 07:25 AM
#4
Doesn't sound like its your problem though.