dang ive missed all the fun

 

Nope, you're just in time.

 

Update. Crawled under the truck, pump is covered head to toe w/ fuel. Got a drip thing going to.

 

Atleast you found the problem

 

Replace entire pump, or just a simple gasket replace?

 

Here is a list and source for the pump seals that will generally stop the leaks. Mixed results though. Some have reported no more leaks while others had them return in cold weather. The other choice is replace the pump with a Stage 1, maybe?


Philadelphia Ball & Bearing Co.
1346 Centre Avenue
Reading PA.19601-1412
phone # 610-376-7500


1- 25x36x7 harwal seal this is stock size
1-25x37x7 harwal seal this is stock size
1-2.50x54.00 ame o-ring this is 1mm thicher then stock
6-2.00x7.00 ame o-rings these are 1mm thicker then stock
1-2.00x67.00 ame o-ring this is stock size

 

I guess if seals don't do it, I can remove/install the pump a little faster. Thanks!

 

Make sure you check the thread in the Duramax section and Cummins section on the DIY mod for the CP3. If this doesnt help then shoot me a PM. I'm personal friends with 4 of the industry experts on the CP3 system so I PROMISE you they will give you the answer you need or tell you which way to go.

 

I have a damp CP3 on top of pump between pulley and where lines come into pump. Oil level is good [not increasing], so can this be the winter wonder you are describing? It is damp, not wet, no drips. 150K miles.