Posted on 8/1/2025

Why Is My Truck Misfiring? Don’t Ignore the Shake, the Light, or the Loss of Power—Here’s What’s Really Going On Under the Hood If your truck is misfiring, something is breaking down in the engine—and every mile you drive without fixing it is making the problem worse. Maybe your truck shakes when it idles. Maybe it stumbles when you accelerate, or the check engine light is flashing. However it shows up, a misfire is not a small issue. It’s a signal that combustion inside the engine isn’t happening properly—and that kind of imbalance leads directly to power loss, higher fuel costs, and long-term mechanical damage. At Tim’s Automotive Repair and Sales in Clackamas, OR, we specialize in advanced engine diagnostics and misfire repair. Whether it’s an ignition issue, a fuel delivery problem, or internal mechanical wear, we’ll find the cause, fix it right, and protect your engine from further damage. What I ... read more