Real diesel truck repair jobs, diagnostics, tools, and lessons from The Wrench inside the shop.
Diesel Mechanic Shop Blog · September 23, 2026
Mechanics have a funny relationship with heat. Sometimes it’s your best friend — heat up a stubborn nut and it comes loose. But when the engine starts overheating, heat quickly becomes the enemy.
The Wrench1Diesel Mechanic Shop Blog · September 22, 2026
We removed the right spindle for repair. The wheel hub rides on this spindle with the bearings and seal installed inside. The problem was play in the kingpin, which allowed the steering knuckle to move more than it should.
The WrenchDiesel Mechanic Shop Blog · September 22, 2026
If you work on Volvo trucks, Premium Tech Tool (PTT) is one of the essential tools to have. It lets you run diagnostics, tests and calibrations, and perform programming that goes far beyond simply reading fault codes. 🔧💻
The WrenchDiesel Mechanic Shop Blog · September 21, 2026
This is what a Volvo truck transmission looks like out of the truck. Removing one is a challenging and time-consuming job because of its size, weight, and limited working space. 🔧
The Wrench1Diesel Mechanic Shop Blog · September 20, 2026
Front end is apart and the tools are everywhere. Working on the steering and suspension today. Sometimes you have to take half the truck apart just to get the job done. 🔧
The WrenchDiesel Mechanic Shop Blog · September 20, 2026
Big job in the shop today. We pulled this DT-15 engine out of the truck for repairs. When an engine this size has to come out, you know it’s not going to be a quick job. 🔧
The Wrench1
