Dodge Cummins Repair

Diesels are not Indestructable

Dodge Cummins Diesel melted piston

While Diesel engines are remarkably tough they are not indestructible and can be expensively damaged when abused. Take a look at these pistons from a Dodge Cummins Diesel. The vehicle owner had installed a performance chip in the computer and taking advantage of the extra horsepower hauled a trailer at high speed up the Coquihalla Highway.

It was undoubtably an impressive site, watching a truck and trailer maintaining the speed limit uphill through the steep mountain grades. However a severe price was paid when a knocking noise developed in the engine. After tearing down the engine the damage was found: a partially melted piston caused by the relentless uphill quest for speed. This is an expensive diesel repair.

If you own such a vehicle take care when driving, especially after making performance upgrades or modifications: all engines are built to take a set amount of strain and overdoing it could cost you big money.

Melted piston on left, Normally worn piston on right

Damaged piston skirt on left, normally worn piston on right

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