Good to hear. I also think an added bonus is better filtration, especially for these high pressure injectors.
I ran the FASS 95 GPH system on my 99 cummins for 278,000 miles including a ton of sled pulling. Held steady at 17 PSI with 200 hp injectors and dual programmers. Sled pulls, drag and dyno days
I worked for a couple years for TST, Mark the owner, was on the engineering team for the ISB program and knows his ****. You would not believe the level of engineering into those boxes. The PowerMax3 Comp was the king of its day until timing and EFI live came out for the CRs. I still run a PM3 in my 99, though I had Mark take the Comp tune out. Just too aggressive for the 2nd 99 which was the tow rig. Probably have it put back in now that it’s gone the way of toy vs hauler.
Yeah, Mark's boxes were well built! I remember back in 2014, or so, I thought there was a problem with my PM3 and gave Mark a call. He said to send it in and he would put it on your guys test fixture and see what's up. He ran it for 24 hours on full power and it was fine, as to be expected! He never charged me anything for it and the problem wound up being my solder joint on the pump wire had fractured and would sometimes cause glitches. At the time this box was probably 15 years old and he tested it for free, that's the kind of guy Mark is.
What year truck and what engine?
The Fass I'm looking at requires it's own suction line to be drilled and fitted in the tank, so you may be looking at doing a different setup than I am.
That’s why I asked what year. In later years they went to an intake pump trying to solve the lift pump issues.
Depends. I really think they just grabbed what they had lol. I’ve worked in an 09 6.7 liter with a lift pump on the block.
Learn something new everyday. I just went out to check and see if the pump was for sure in the tank and for the heck of it bumped it over and the dang pump started running. First time in months that I've heard it, but I still think it's on it's last leg at 265k.
I have another question for you pertaining to this '05 truck. The CP3 pump has a weep between the two halves at colder temps. I have read that the bolts can back out and just need to be retorqued. Do you think the seals are actually bad or could it be those little torxs head bolts can back off?
I have seen both happen. What we always did when one came in with that issue was retorque to spec and check to see if it leaked afterwards. Plus it’s free to check that. We didn’t even charge for that step if that solved the problem cause it didn’t take long at all, half the time it was done in the driveway.
I think that's what I'm going to try first. I'm fixing to order the pump so the truck will be getting it all done at once. Hopefully that will fix the weep.
I changed to an external pump with a Draw Straw in my old truck and found that it wouldn’t draw the fuel out of the tank once it reached 1/8 full. Later I bought the kit that bypassed the in tank pump in order to utilize the stock pickup and I could then have access to the last 1/8th of fuel. That being said you made a good choice in your fix.
