MP8HE with Energy Recovery Technology | Mack Trucks
MP8HE with Energy Recovery Technology | Mack Trucks
11 months ago
macktrucks.com
This Mack MP8 showed low power under load — here’s how we diagnosed the real cause: 🔧 What we tested: ✔️ Boost system — found small air leaks ✔️ Fuel system — ran an air-in-fuel test to rule out injector cup leaks ✔️ Cylinder balance — showed contribution imbalance ✔️ Overhead valve inspection — confirmed loose valves 🛠️ The real issue? Loose valves causing poor cylinder contribution. This is a great example of why full diagnostics matter — power loss doesn’t always point to the turbo or fuel.
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