Dec 15, 2025 · Lb7 Oil Level Switch - Struggling with Pin 70 2002holding Mar 3, 2025 Replies 3 Views 376 Mar 4, 2025

Aug 17, 2024 · LB7: Looking for a stock and a tow tune. strokerz Nov 21, 2019 Replies 10 Views 3K Nov 26, 2019

Oct 17, 2011 · What year is your truck? Sounds like a LB7, they have the most problems with fuel in oil. If it is a LB7 more likey it's injectors. I have never heard of the cp3 putting fuel in the …

Feb 5, 2021 · Thinking about long-term plans for my truck (2003 CCSB 4x4 LB7). Let's say the goal is 600 rwhp (or enough to run 7.99 in full street trim in a 7000 pound truck) and to be as …

Sep 15, 2024 · Recently bought a wrecked lb7 for dirt cheap from a friend. Pulled the motor, stripped it to the block and sent it to the machine shop to be hot tanked, honed and new cam …

Oct 12, 2012 · Does anyone know what the fuel rail pressure should be at idle?

Nov 23, 2014 · How to fix? I have 2001 Duramax & I Swapped the engine that came out of 2003 LB7 duramax, but the oil pressure Gage is maxed out and as you have stated the sensors are …

Jul 3, 2015 · Been fighting a oil dilution problem for a while now and it keeps getting harder to find the leak.No return or injector leaks visible with covers off and idling at 160mpa so I added dye …

Sep 13, 2015 · I am relatively mechanical and the head gaskets are blown in my LB7. I keep hearing all these horror stories on changing head gaskets on a duramax. I have never done …

Aug 28, 2013 · Anyone know at what point my stock cp3 maxes out for hp? I hear stock injectors will do up to 550-600hp but will the cp3 keep up with a lift pump? Im just putting everything in …