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Everyone that has a CP4 pump (2011-2024 Powerstroke 6.7L, 2011-2016 Duramax 6.6L, 2019-2020 Cummins) needs to know that the current failure rate (Feb 2026) in the U.S.A. for the CP4 is every 1 in 14 trucks. That's 7% of every truck with a CP4. That might not sound like much, but in the diesel world, that is a ton. That is approximately 140,000 trucks in the US alone that have had a CP4 pump failure. The Reality of Powerstroke CP4 Failures Ok, so I'll mainly be addressing the

There are a few ways to fight gelled fuel during the winter time. Now, Power Forge Diesel is in Yuma, Arizona , which rarely gets below freezing. However, fuel gelling issues can start as early as 32 degrees. You should be running a fuel additive to fight this anyway. We recommend Optilube All-Season  (not sponsored). Run this additive regardless of the temperature outside. We have a separate post about fuel additives, but what are automatic ways your truck can de-gel the fue

Your transmission is basically a big hydraulic piece of equipment. It uses transmission fluid to perform every function of your transmission. It is no mystery, especially with the new GM Duramax and Ford Powerstroke  10 speed automatic transmissions, that the cooler your transmission fluid temperature, the longer your transmission will last. Many people don't know how to get lower trans fluid temps. But we at Power Forge Diesel in Yuma  have the ultimate setup for the best tr

If you own an LB7 Duramax , you have probably replaced injectors. Even if you haven't owned an LB7 duramax, you have probably heard of the infamous injector issues that plague this truck. Before we go into the injector fix, you need to fix the injector cup issue in the heads themselves. PPE and Fleece  both make heads that do not have injector cups in them, we have another post that goes into depth on those. So how do you fix the injector issues? The $13,000 Dealership Quote

It is obvious that your diesel engine (whether Powerstroke, Duramax, or Cummins)  has coolant in it. I don't have to go into much detail on what your coolant system does. I will say that your radiator is designed to function under normal use, but what are some reasons you should look into a Mishimoto radiator for your diesel truck here in Yuma, AZ ? The Problem with Stock Radiators (Plastic End Tanks) The factory radiator (for the most part) is sufficient for normal everyday

Many people tow in Yuma. Whether you're a winter visitor escaping the cold or a local heading to the dunes with a heavy toy hauler, we put our trucks through incredible stress with these massive trailers. While modern trucks are rated for heavy loads, "rated for it" doesn't always mean "built to last through it"—especially in the Arizona heat. So, how can we increase the life of our trucks while hauling heavy rigs? At Power Forge Diesel , we recommend these three essential up

If you’re driving a 2001 to 2026 GM Duramax , there is a hidden danger lurking at the front of your engine. It doesn’t matter if you have a classic LB7 or a brand-new L5P; your harmonic balancer  could be the reason your engine fails catastrophically. At Power Forge Diesel in Yuma, Arizona , we specialize in preventing "The Snap." Here is everything you need to know about the Duramax crankshaft pin shear issue and how we can fix it in a single day. The Problem: A Design Flaw

This is a fun one to talk about. An aftermarket intake is what a lot of first time diesel owners first jump to when they go to upgrade their truck and rightfully so. They aren't too complicated to install and can be done right in your driveway here in Yuma, AZ  for pretty quick and easy horsepower gains. Cheap vs. Quality: What to Look For Now there are things you should look for when going to buy an aftermarket air intake on your truck. If you're already looking for the chea

The modern emissions systems for diesel trucks have come a long way. It doesn't mean we at Power Forge Diesel in Yuma  like or support emissions equipment development at all, but here's what you need to know to keep your truck on the road. Emissions Deletion vs. Maintenance I’m going to preface this by saying, the best way to make an emissions-intacked truck reliable over any other upgrade is to get rid of the emissions equipment. You’ll need to look up your local laws to see

You’ve probably heard of guys putting additives into their diesel tanks (whether it's a Powerstroke, Cummins, or Duramax) . You know, “those guys”. From the outside, it seems like these guys are either wasting their money, or maybe use their trucks primarily for heavy hauling. You don't need an additive right? Or, maybe you don't know where to look for a good one? Either way, a lot of people don't understand diesel fuel additives, and why you should use one. For those that al

If you own a Dodge Ram Cummins  here in Yuma, AZ , you know that eventually you'll develop an exhaust leak. But do you know why Cummins engines are notorious for exhaust leaks? The Problem: Why Stock Cummins Manifolds Crack Cummins  makes a great engine. It's a straight 6 design and known for its torque output. Unlike its V8 counterparts, the straight size design uses a 1 piece exhaust manifold for all 6 cylinders. That extra length of the 2 cylinders makes for a longer exhau

Everyone knows that they need to change their oil. Here at Power Forge Diesel in Yuma, AZ , a debate as old as time is how often you need to change your oil. We won't be commenting on that today. What we will be going over is oil filtration and why that matters. Full-Flow Filtration: Ford, Chevy, and Dodge Standards Oil filtration has been around for a very long time. Full-Flow oil filtration is exactly what every OEM manufacturer puts on their trucks. Your Full-Flow filter i

Alright, lets talk about the 6.7L Powerstrokes . Great engine with a lot of power. Every diesel has their problems, and Ford is no exception. The fact that Ford put the CP4 pumps on their powerstroke trucks for so long is beyond me. I feel like it's a bit of a joke in the industry of the Bosch CP4 pumps  blowing up. This isn't a matter of if it will happen, it's a matter of when it will happen. Why the CP4 Pump Fails (The $15,000 Bill) The Bosch CP4 is designed to use fuel to

Duramaxes are known for head gasket failure. This is coming from us “Power Forge Diesel” here in Yuma, AZ , who have 2 LB7 duramaxes in the front page of our website. Trust me, I know the pain of a blown head gasket. I also love these trucks. However, the head gasket problem is prevalent all the way until the current model (2026). So how do you fight this issue with your Chevy or GMC Duramax ? The "Why": Aluminum Heads vs. Iron Blocks You might be thinking “well, I haven't ha

If you have a 6.7L Cummins  from the years of 2007.5-2024, you need to listen up. Cummins is a great engine, however, from these years Cummins has 1 major design flaw that is actively threatening your engine of catastrophic engine failure. This isn't hyperbole. This isn't an over exaggeration. Your engine has a grid heater that is in the intake side of the engine. The grid heater is held on by a bolt and nut—often called the "Killer Grid Heater Bolt" —that literally melts off

Many diesel owners in Yuma, AZ  believe that since they have a fuel system that already has a fuel filter from their manufacturer and have never had problems with their fuel system before, that they don't need to upgrade to a FASS Fuel System . Many trucks have climbed in mileage without a FASS fuel system for sure. So why should you upgrade to something you "don't need"? Stock Ford, Dodge, and Chevy Filtration Issues Your stock fuel system already has a filter in it. For exa

Many diesel owners have an aftermarket differential cover. Some advertise more fluid capacity, some look prettier than others, you get the point. So why would you need a Banks Power Diff Cover for your Powerstroke, Cummins, or Duramax  if you've never had issues with your stock one or you have already upgraded to a different aftermarket cover? The Problem with "Flat-Back" Covers Think about it, every single fluid in your truck has some sort of cooling system on it. Oil has mu