In March I took the tow pig to Decatur to pick up some Nitto Trail Grappler 40s that I had ordered for the Jeep. The ride up was uneventful with zero problems. After I loaded up the tires I jump on the highway. Well at the top of the freeway entrance ramp the truck went into limp mode and then the tach went to zero. I put the truck in neutral as I was coasting on the freeway and attempted to start it. No luck. I rolled over to the shoulder and got out to lift the hood. As I walk back to the driver door I see diesel fuel pouring out from under the truck. The FASS pump was definitely working, but all the fuel was hitting the ground. My first guess was a busted rubber hose on the CP3 pump or the short half-inch hose that connects the CP3 regulator to the pump. I called AAA and got a tow home. The next day I pushed a bore inspection camera under into the engine valley to see what was up. I got a good look at the top of the CP3 pump while I applied power to the FASS pump and right away saw gas coming from the seam on the CP3 pump. Game over! Expensive repair! Ugh…
The truck has been sitting in the same spot in the cul de sac across from my house since the tow truck driver dropped it off and I discovered the problem. Well, this week I finally ordered the crazy expensive CP3 pump from Industrial Injection and UPS was nice enough to get it here on a Friday so I could work on the truck on Saturday. I mean all day Saturday! I started early in the morning to take advantage of the cooler air in hopes of having the pump out by before lunch. At 1:30 I finally got the pump free from the engine – what a beating! I swapped the gear over and prepped the pump to go back in the truck. I was finally able to get the pump back in and close up the engine. About 10 hours after I started the process the truck was back running. GM service books have the pump replacement listed as 6 hours labor. Ok, maybe if you have done several and had practice. Anyway, I was able to save a little over a thousand dollars by doing it myself. This money will come in handy when getting the Jeep exhaust back.
Oh, and the problem with the CP3 pump was that 3 of the 5 screws holding the pump body together were laying loose in the valley of the engine. The screws had backed out of the pump out causing the pump to split in half. A fourth screw fell out while I was swapping the drive gear, and the fifth was just finger tight. The pump was literally falling apart!
