What are the Common Issues with GU Patrol Intercoolers and How to Fix Them Issues in a GU Patrol intercooler are very common but they’re not difficult to manage when caught early. Understanding the signs and acting before performance drops too far keeps both costs and stress under control. Whether it’s cleaning, repairing, or upgrading, the right decision depends on how far the problem has progressed. A reliable upgrade from HP Diesel can keep your Patrol running strong where it matters most. https://hpdiesel8.wordpress.com/2026/04/16/what-are-the-common-issues-with-gu-patrol-intercoolers-and-how-to-fix-them/