![]() ![]() ![]() The bad part about this system is that it is affected by low quality fuel and oil, which is all too common and hard to avoid nowadays. The problem happens when the spool valve either has oil residue on it and becomes stuck, or when the engine oil becomes foamy to the point where the foam is creating a false injector pressure. This piston then converts the oil pressure into fuel pressure, and from there the fuel is injected into the cylinder at up to 4000psi. Instead of using a high pressure injection pump to pressurize the fuel in the injector body (like you’ll find in newer diesels) the HEUI system uses oil that has been pressurized very highly, sent directly into the injectors, to create the required fuel pressure.īasically, the oil pump pressurizes some of the engine oil, sends it to the HEUI system, which opens or closes a spool valve inside the injector, allowing the oil to push on the intensifier piston. Contrary to most modern common rail systems, the HEUI is now an outdated system that was introduced by Caterpillar way back in the 90’s. The 6.0 and 7.3 Powerstrokes use hydraulically actuated electronically controlled unit injector (or HEUI) injectors. Stiction is unfortunately a very common problem with the fuel delivery system that these powerstrokes use, and can lead to serious issues with hard starts, rough idling, misfires and terrible overall driveability. Be careful not to overfill.In this guide, I wanted to cover an issue that many 6.0 and 7.3 powerstroke owners have run into, Injector stiction. Remember: the amount of Stiction Eliminator that is added replaces the same amount of engine oil. For a maintenance dose use only half the recommended initial amount. Hot Shot’s Secret Stiction Eliminator is made up of 100% additives so it can stay in the oil for the entire oil change.įor initial cleanup please refer to the initial treatment chart above. We recommend using with a fresh oil change, ideally with a full synthetic motor oil. Recommended for ALL diesel and gasoline engines. After Hot Shot Secret Stiction Eliminator was added to the engine, the analysis consistently showed only 1 injector needing replacement. Most of the time, the diagnostic analysis showed that 4 injectors needed replacement before treatment. ![]() The other 14% of the trucks showed improvement also. The owners noticed more power and a smoother running truck. 86% of the time, the analysis showed all the injectors were back online. The trucks were run only 100 miles and then the computer analysis was repeated. A treatment of Hot Shot’s Secret Stiction Eliminator was added to the engine oil. Computer analysis showed anywhere from 1 to 6 injectors needing replacement. Trucks having problems were hooked up to a diagnostic computer and tested. We have been testing Hot Shot’s Secret Stiction Eliminator since 2004. Friction modifiers and viscosity improvers make everything run smoother, with less friction and acid neutralizers help to prevent the built up soot in your engine oil. It also contains additives that make the motor oil work better. Stiction Eliminator is a combination of detergents and dispersants that clean up the carbon and oxidation inside the injector. If you have a diagnosis of a failed injector, then Hot Shot’s Secret Stiction Eliminator will fix this problem, even if the injector is at the point of not working. ![]() Recommended for ALL diesel and gasoline engines, even without symptoms like failing injectors, stiction is being made. When used in conjunction with Diesel Extreme (fuel additive), your engine will regain its original performance power. And you’ll save thousands of dollars by not replacing injectors that weren’t broken to begin with! In less than 4,000 miles you will see, hear and feel the difference as your injectors come back on line. Pour one treatment of our Original Stiction Eliminator into your oil BEFORE replacing your injectors. Scientifically formulated to eliminate the stiction build-up that causes most injectors to fail. It not only cleans injectors but other parts of the engine as well, including the turbocharger. Original Stiction Eliminator will stop excessive black smoke and bucking and chugging on cold starts. ![]()
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