This Customer Avoided the $15,000 "Grenade": Powerstroke CP4 to CPX Conversion & FASS Install
- Power Forge Diesel
- Mar 10
- 2 min read
The 6.7L Powerstroke is a workhorse, but it has a "ticking time bomb" known as the CP4 injection pump. At Power Forge Diesel, we recently had a 2013 Ford Powerstroke in the shop for a proactive overhaul to ensure this truck stays on the road—not on a flatbed.
The Problem: The Infamous CP4 Failure
If you own a modern diesel, you’ve likely heard the horror stories. The stock CP4 pump is notoriously sensitive to fuel lubrication and contamination. When they fail, they "grenade," sending metal shards through the entire high-pressure fuel system.
The Result: You’re looking at a $10,000 to $15,000 repair bill to replace injectors, rails, lines, and the pump itself.
The Solution: CPX Conversion
Our customer’s truck was running fine, but they chose peace of mind over a potential disaster. We performed a CP4 to CPX conversion using the RCD CPX pump.
While we still consider the DCR conversion the absolute gold standard for these trucks, the CPX is a massive upgrade. It is specifically engineered to address the internal lubrication issues and metallurgical weaknesses found in the stock Bosch units. Replacing a healthy CP4 is the smartest preventative maintenance a Ford owner can do.
Better Filtration: FASS 140GPH & Fuel Filter Delete
To back up the new pump, we installed a FASS Fuel Systems 140GPH kit along with a fuel filter delete. This setup is a game-changer for several reasons:
Superior Filtration: FASS filters fuel to a much finer micron rating than stock, removing air, water, and debris before it ever touches your expensive injectors.
Consistent Pressure: It maintains steady fuel pressure, reducing the workload on your injection pump.
Safety First: The stock Powerstroke fuel filter housing has a reputation for failing—in extreme cases, even leading to engine bay fires. The FASS system eliminates this weak point entirely.
Final Verdict: Don't Wait for the Disaster
This 2013 Powerstroke left the shop with a bulletproofed fuel system and a significantly lower risk of catastrophic failure. Whether you’re towing heavy or daily driving, getting the CP4 out of your engine is the best investment you can make.
Ready to protect your rig?
Contact Power Forge Diesel today for a quote on your CP4 conversion.
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