2008 cummins question

R

ronniehotdog

New member
I am looking at a 2008 Dodge. When you press on the gas and and let off the fast it has run on like the motor has no compression. I have not drove a dodge since the old 95, it does not do that. Just wanted to know if all the new motors were this way.
 
All common rails do that.... They make upwards of 25,000 psi in the fuel system. So to gain rpm/power the pressure increases. When you let off fuel pedal abruptly from higher RPM's and such, the fuel pressure/volume has to go somewhere.
 
My vp did that on one of my dyno runs, not fun.


Posted via tapatalk if you know what i mean
 
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