Hey everyone recently my Mack started losing power and started sounding as if it is having a misfire whenever I go above 40 miles an hour I tested if there was a boost leak there isn’t one. This only happens when the engine is underload on an incline. Otherwise, when the truck is empty, everything seems fine.
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saar
Hey everyone recently my Mack started losing power and started sounding as if it is having a misfire whenever I go above 40 miles an hour I tested if there was a boost leak there isn’t one. This only happens when the engine is underload on an incline. Otherwise, when the truck is empty, everything seems fine.
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