Stupid Stumble

[smoken02]

Well aside from my starting problem. If I'm at a stop light and hit the throttle kind of fast the engine will stumble then go. I suppose this may be another symptom of a bad vp just like a lot of cranking before my engine starts. Could it be anything else?

 

[BluegrassDiesel]

Could possibly be a pretty significant air leak in the fuel system, but its probably the VP.

 

[Ktown6.0]

Smoken,

Have you noticed any loss of power on the top side of the RPM range? I just recently replaced a VP due to no power above 1500 rpms. I reset everything multiple times, and just finally bit the bullet. The truck is stock save for an intake and exhaust. So, the truck I was driving had perfect starts, and would take off fine, just fall on its own face after 1500 rpm.

 

[smoken02]

It has good power. Looking at my dyno graph from last weekend. It has a nice curve. It make 400hp at 2400rpm and stays over 400 through 3100rpm. It peaks about 27-2800 rpm at 437hp.

 

[VMacKenzie]

Might read this over Blue Chip Diesel VP44 diagnostics

 

[smoken02]

Now that's some good reading.